Fix build break if converting libexynosdisplay to soong am: b3229ce345

Original change: https://android-review.googlesource.com/c/platform/hardware/google/graphics/zuma/+/3333435

Change-Id: I93c2430225ecdbebd3f2bf34cb28e321b4f92e85
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>