Add support for 2094-50 metadata in cros_gralloc_buffer

Android is adding support for this new metadata type.

Bug: 454022201
Test: builds
Change-Id: I5c0f8f35a15356da11d8c51205450bdc7461e209
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/minigbm/+/7154258
Reviewed-by: Jason Macnak <natsu@google.com>
Auto-Submit: Alec Mouri <alecmouri@google.com>
Commit-Queue: Alec Mouri <alecmouri@google.com>
Tested-by: Alec Mouri <alecmouri@google.com>