Add ART run-test `art-run-test-048-reflect-v8` to CTS. am: b88f3dbe28

Original change: https://googleplex-android-review.googlesource.com/c/platform/art/+/18549644

Change-Id: Ie6d08e5f8e9b0bbb66120d18ddef7840b78d5d67
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>