Merge "Revert "graphics: improve preloading for IMapper default impl"" am: aab958fef0

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/2497376

Change-Id: I76feee415c170dc377424b1dbe64ed3afa1e2ff4
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>