Add ANGLE.apk to the base system.

ANGLE has been packaged as a prebuilt library in internal master.  This
CL transitions the library to being built from source in AOSP so it can
be tested and included as a mainline module.

Test: ANGLE is in the developer options/EGL platform can load ANGLE
Bug: 142239747

Change-Id: Ie06dcfccce022ed608c18362e246f6f2a3c6fb1a