Mark cn-cbor_test as not gtest am: 97c813c112 am: e665ba070a am: 9c65b9cea6

Original change: https://android-review.googlesource.com/c/platform/external/cn-cbor/+/1581965

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: Iaa871d596fee3e39d0889f175e33334e7ef3e4e6