Enable VoLTE/VT for Verizon carrier

Add overlay config items to enable VoLTE and VT support for
  Verizon operator.

(cherry picked from commit Ic460e62585799cb89b20eacdb4f8a2eb99bd652d)

Config item to speed up the audio mode

  This config item will be used to set the audio mode to IN_CALL
  prior to RIL sending ACTIVE state for a MT call.

(cherry picked from commit Ia67fea607d90b612a3ad1f4ce195354dfe185ff2)
CRs-Fixed: 726708

Add tcpbuffer parameters into overlay.

  - Add the various RAT values in config_mobile_tcp_buffer array.
  - These values are from init.qcom.rc.

(cherry picked from commit Ie675c410915029d9ef1a2ef7ebad396201771c27)

Change-Id: I43f1e0564a29ed70931c1ff97bf93421422e66a6

device/overlay/frameworks/base/core/res/res/values-mcc311-mnc480/config.xml

@@ -0,0 +1,38 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--Copyright (c) 2014, The Linux Foundation. All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the following
+      disclaimer in the documentation and/or other materials provided
+      with the distribution.
+    * Neither the name of The Linux Foundation nor the names of its
+      contributors may be used to endorse or promote products derived
+      from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
+WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
+ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
+BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+-->
+
+<resources xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
+
+    <!-- Overlay config file for Verizon operator -->
+
+    <!-- Flag specifying whether VoLTE & VT should be available for carrier: independent of
+         carrier provisioning. If false: hard disabled. If true: then depends on carrier
+         provisioning, availability etc -->
+    <bool name="config_carrier_volte_vt_available">true</bool>
+</resources>

device/overlay/frameworks/base/core/res/res/values/config.xml

@@ -215,7 +215,24 @@
     -->
     <!-- Is the device capable of supporting digital pen -->
     <bool name="config_digitalPenCapable">true</bool>
-    <!-- Flag indicating if the speed up audio on mt call code should be executed -->
-    <bool name="config_speed_up_audio_on_mt_calls">true</bool>
 
+    <string-array name="config_mobile_tcp_buffers">
+        <item>"lte:2097152,4194304,8388608,262144,524288,1048576"</item>
+        <item>"umts:4094,87380,1220608,4096,16384,1220608"</item>
+        <item>"hspa:4094,87380,1220608,4096,16384,1220608"</item>
+        <item>"hsupa:4094,87380,1220608,4096,16384,1220608"</item>
+        <item>"hsdpa:4094,87380,1220608,4096,16384,1220608"</item>
+        <item>"hspap:4094,87380,1220608,4096,16384,1220608"</item>
+        <item>"edge:4093,26280,35040,4096,16384,35040"</item>
+        <item>"gprs:4092,8760,11680,4096,8760,11680"</item>
+        <item>"evdo:4094,87380,524288,4096,16384,262144"</item>
+    </string-array>
+
+    <!-- Flag specifying whether VoLTE & VT is availasble on device -->
+    <bool name="config_device_volte_vt_available">true</bool>
+
+    <!-- Flag specifying whether VoLTE & VT should be available for carrier: independent of
+         carrier provisioning. If false: hard disabled. If true: then depends on carrier
+         provisioning, availability etc -->
+    <bool name="config_carrier_volte_vt_available">true</bool>
 </resources>

device/overlay/packages/services/Telecomm/res/values/config.xml

@@ -34,4 +34,6 @@
 <resources>
     <!-- Flag indicating if the tty is enabled -->
     <bool name="tty_enabled">true</bool>
+    <!-- Flag indicating if the speed up audio on mt call code should be executed -->
+    <bool name="config_speed_up_audio_on_mt_calls">true</bool>
 </resources>