goldfish-opengl: update AHB with host color buffer memory index

- use host defined memory index instead hardcoding to zero
- updateMemoryBitsForAndroidHardwareBuffers --> updateMemoryBits
    -- maybe a namesapce can be added later,
    -- gfxstream::guest::vk::ahb::updateMemoryBits

BUG=215538934
TEST=compile

Change-Id: Ifcdb877f0502249ec5fdfe5964fca9cd4f91bd5e
4 files changed