Use "gfxstream" namespace am: 8a634366d9 am: 897faee161

Original change: https://android-review.googlesource.com/c/platform/external/gfxstream-protocols/+/2496226

Change-Id: I043ae6d2174fad57459b2c8b484c22b311b830ff
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>