Store symbols.zip in apps_only build.

Bug: 18103055
Change-Id: I0eb335e944138b0edc3050d19c076891f499a07c
Add post-install verification phase

Verify the SHA sum of all patched and extracted files after
a file system remount.

Bug: 18145574

Change-Id: I2f053d085543e10e39153a774542d37ee0a238bd
"LRX21M"
LRX21N
merge in lmp-release history after reset to lmp-dev
"LRX37"
LRX21O
merge in lmp-release history after reset to lmp-dev
LRX21P
"LRX21Q"
Merge tag 'android-5.0.0_r5' into lollipop

Android 5.0.0 release 5