Add graphics-base-v1.2 autogen headers

Graphics headers generated by:
hidl-gen -Lexport-header -o
$ANDROID_BUILD_TOP/system/core/include/system/graphics-base-v1.2.h
android.hardware.graphics.common@1.2

Bug: 109735087
Test: Android builds successfully
Change-Id: Ie847fdd808ed0daaea917d705a8dc51c6633142a