GC triggering performance optimizations

Copy the correct starting heap size at process init.
Interfaces to set GC/managed heap parameters.

Change-Id: I0154d1523c3cfdb1214ed0315193cbb24704351f
SystemUI: 4G/LTE icon toggle

Change-Id: I6736efa45ea46701c8db2d5f51dd2fced359e483
Signed-off-by: Roman Birg <romanbirg@gmail.com>

Conflicts:
	core/java/android/provider/Settings.java
	packages/SystemUI/src/com/android/systemui/statusbar/policy/NetworkController.java
SystemUI: Fix LTE Fully Connected

Blue at full connection

Change-Id: I6811ee3890b8f1b4d2340f6be20e0bc8bcea75df