display: bring back support for mr0 adreno blobs

  Change-Id: If423fd01eefbc4f64f6fee18d7ba636a912b6d21

Conflicts:
	libgralloc/gralloc_priv.h

Change-Id: Id2e0492546edb70590f5482758e7ee6b0ec97ace
display: fix display hal building for 7x27a under aosp

  Change-Id: I6c32d2334c8c674e7cdb6859e03f5aa5dd953bc4

Change-Id: I2ce7c7efe792f7882d2f091eae70cf8197f07004