Merge branch 'cm-12.0' of https://github.com/CyanogenMod/android_frameworks_base into cm-12.0

(cherry picked from commit 82350f2a91a456334ec81a3668646266adc3b40a)
pm: Add persist property to enable lazy dexopt

 * Add "persist.sys.lazy.dexopt" property to enable lazy dexopt
   on userdebug builds.  As much as I enjoy these 20 minute
   dexopt sessions, I prefer instant gratification.

Change-Id: I568692f04d67c3c0a1a138fb724eda41e24b1235
(cherry picked from commit a3e3e5f39b73d4b55782b73940807a9925e7541f)