Update microdroid test to include protected_vm flag

assemble_cvd was updated to include a flag which would disable insecure
launcher options.

Bug: 182005319
Test: local boot on cuttlefish
Change-Id: I3aabd594bf742a7639d4f57a1276a2733545c03e

microdroid/README.md

@@ -52,7 +52,7 @@ Create the composite image using `assemble_cvd` and run it via `crosvm`. In the
 future, this shall be done via [`virtmanager`](../virtmanager/).
 
 ```
-$ adb shell 'HOME=/data/local/tmp; PATH=$PATH:/apex/com.android.virt/bin; assemble_cvd < /dev/null'
+$ adb shell 'HOME=/data/local/tmp; PATH=$PATH:/apex/com.android.virt/bin; assemble_cvd -protected_vm < /dev/null'
 $ adb shell 'cd /data/local/tmp; /apex/com.android.virt/bin/crosvm run --cid=5 --disable-sandbox --bios=bootloader --serial=type=stdout --disk=cuttlefish_runtime/composite.img'
 ```
 

tests/hostside/java/android/virt/test/MicrodroidTestCase.java

@@ -84,7 +84,7 @@ public class MicrodroidTestCase extends BaseHostJUnit4Test {
         // Run assemble_cvd to create composite.img
         getDevice().executeShellCommand("HOME=" + TEST_ROOT + "; "
                 + "PATH=$PATH:" + VIRT_APEX + "bin; "
-                + VIRT_APEX + "bin/assemble_cvd < /dev/null");
+                + VIRT_APEX + "bin/assemble_cvd -protected_vm < /dev/null");
 
         // Make sure that composite.img is created
         final String compositeImg = TEST_ROOT + "cuttlefish_runtime/composite.img";