Allow uninstallable APPs.
Allow uninstallable APPs.

Bug: 5264671
This is needed by cts tests.
It's harmless to existing modules.

Change-Id: I0083471f80d483559b27523d4b88190d7913f6f1

xorware/android_build,xorware/android_build,xorware/android_build,xorware/android_build,see4ri/lolili,RR-msm7x30/platform_manifest,pranav01/platform_manifest,hagar006/platform_manifest,ND-3500/platform_manifest,knone1/platform_manifest,fallouttester/platform_manifest,xorware/android_build,Hybrid-Power/startsync