1. Query GPU only if the client uses UBWC specific HAL pixel format
or sets UBWC gralloc flag in the usage flags.
2. Add an adreno pixel format in the utils.
Change-Id: I84a4701b40deae349f49440f0508972974c4b12a
1. It helps in checking gralloc private usage flags at compile time.
2. Define GRALLOC_MODULE_PERFORM_GET_UBWC_FLAG to enable client to
query the value of "PRIV_FLAGS_UBWC_ALIGNED" flag at run time.
3. Add ADRENO_PIXELFORMAT_NV12_EXT in defined Adreno Pixel formats
to fix NV12_UBWC HAL pixel format conversion to Adreno format.
Change-Id: I78ccac98f1bd1bfbd2aa596ceb7a293f3d2e5f6e
Add adreno_utils header to define Adreno pixel formats, which are
needed by gralloc to map HAL format to corresponding Adreno format.
Change-Id: I6d38f34583955e3990393801f1dca0dd9aa2013b
