Merge "graphics: improve preloading for IMapper default impl" am: 960c33c5 am: 697fddee

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/2459229



Change-Id: Ic2e20f6e616a121a43053fd935e79bce26d7b538
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>