--For gralloc1, create a libgrallocutils that provides helpers to
calculate various buffer related info
--Make hwc2/gralloc1 structures independent of libdrmutils
and fb_id / gemhandles
--Implement GetBufferLayout API from BufferAllocator that can be called
by DAL before creating fb_id
Change-Id: I0aede7d1ea87302ecda593047728d381383484b9
CRs-fixed: 1114808
* Add support for HAL_PIXEL_FORMAT_RGBA_FP16
* Use system defined HAL_PIXEL_FORMAT_RGBA_1010102
CRs-Fixed: 2012253
Change-Id: I2e4dfe1d06080120acc15c6b8181f8a424248bf7