Add missing synchronized(mLock) blocks into PackageManagerService

The methods whose suffixes are Lpr, LPw, and Locked should be called
within synchronized block, but it was missing. Hence, add missing
synchronized(mLock) blocks into PackageManagerService.

Bug: 162756879
Test: compile & verify basic functions working

Change-Id: Icefabfc9bb8c028edca6f5550524ea7dc1b6ffd9
1 file changed