Vectorize bitmap operations on A15 too

 * Commit a2e20761b5ad646ce3f08ed24995799dd81acee0 enables GCC
   vectorization for bitmap operations on Krait. Enable it on A15 also.

Change-Id: I1f733f5311376deb78782931ea2b83a8d12c2171

Conflicts:
	core/jni/Android.mk

 Changes to be committed:
	modified:   core/jni/Android.mk
core/jni/android/graphics: Cache copy of pre-scaled Bitmaps

Caching some pre-scaled Bitmap objects allows for optimizing later
scaling operations to reduce memory pressure.

CRs-fixed: 451681

Change-Id: Id4341e75911074ff9f565b2d386ccad8f3a223e8
Custom carrier text (1/2) thanks a bunch @rukin5197
this was based on by AOKP's use of the code
enter nothing in the text box to revert back to default.

Conflicts:
	core/java/android/provider/Settings.java

 Changes to be committed:
	modified:   core/java/android/provider/Settings.java
	modified:   packages/SystemUI/src/com/android/systemui/statusbar/policy/NetworkController.java
	modified:   policy/src/com/android/internal/policy/impl/keyguard/CarrierText.java