init: qcom.rc: Adjust the console log threshold for the kernel

This change sets the console loglevel to < KERN_INFO and
set the default message loglevel to KERN_INFO.

One implication is 'printk()' with no specific priority
will not show up on the console by default.

This is done to prevent large volumes of info prints to the
serial console, which on our systems causes watchdog bites.

Change-Id: I0fec065443c5e362ec2dc0c0cf6bab27d94150d8

rootdir/etc/init.qcom.rc

@@ -144,6 +144,10 @@ on boot
     mkdir /data/nfc 0770 nfc nfc
     mkdir /data/nfc/param 0770 nfc nfc
 
+    # Set the console loglevel to < KERN_INFO
+    # Set the default message loglevel to KERN_INFO
+    write /proc/sys/kernel/printk "6 6 1 7"
+
 # msm specific files that need to be created on /data
 on post-fs-data
     # we will remap this as /mnt/sdcard with the sdcard fuse tool