Eventually, this should probably be fetched from the
gralloc buffer metadata using
Gralloc4::Get(android::gralloc4::MetadataType_Dataspace)

Bug: b/147316305
Bug: b/175132241
Test: launch Cuttlefish w/ SwANGLE
Test: cts -m CtsGraphicsTestCases -t
      MediaVulkanGpuTest#testMediaImportAndRendering
Change-Id: Ie991380d2d27e7a540ffe37cfc81109618f2d507
Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/51688
Presubmit-Ready: Jason Macnak <natsu@google.com>
Reviewed-by: Nicolas Capens <nicolascapens@google.com>
Tested-by: Jason Macnak <natsu@google.com>
Commit-Queue: Jason Macnak <natsu@google.com>