Ignore failing RecoverableKeyStoreManager tests. am: ca24397a4d

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23111846

Change-Id: Ic60f72ac520c153c5686e3576b68478bc4d19e5f
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>