To allow genrules with more than one tool, rename the tool property to
tools and make it an array, replace $tool with $(location <label>),
and use $() for other variables for consistency.
Bug: 31948427
Test: compare build.ninja
Change-Id: I3d714f70a2af0dc60faeee10e09b6ed166601f1d
Copied from system/graphics.h with two changes
- YCbCr -> YCBCR
- HAL_TRANSFORM_RESERVED is removed
Test: make
Change-Id: I1d343ff176ac61f911fee949861ce4b12255cd47