Add //apex_available:platform to libicing_tests am: 5d29d40264 Original change: https://android-review.googlesource.com/c/platform/external/icing/+/3483480 Change-Id: Iabc69e6f648e9e3bf07284eaad62c219767097f6 Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>