sm8x50: Add Mesa (zink+turnip) support am: e4d2a6165f am: e3439a1618

Original change: https://android-review.googlesource.com/c/device/linaro/dragonboard/+/3026224

Change-Id: Ibefdf727fcbca5e1b6a7bea7f9fd64d97b697aa4
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>