am62{p,x}: rgx_um_am62{p,x}: add carveout dmabuf heap support
This adds support for allocating video buffers via /dev/dma_heap/carveout_video
Add support for the carveout heap in gralloc and make sure that buffers with flag GRALLOC_USAGE_HW_VIDEO_{DECODER,ENCODER} are allocated from the carveout heap.
Build from: e8208bd266d0 ("android: buffer_alloc: add support for carveout dma-heap")
Signed-off-by: Mattijs Korpershoek mkorpershoek@baylibre.com
Edited by Mattijs Korpershoek