Merge "Export libexynosscaler related variable to soong" into main am: 8c38cda4

Original change: https://android-review.googlesource.com/c/platform/build/+/3286375



Change-Id: I76148c788655cbf1e493e1d009a2f22c681280c2
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>