[automerger skipped] [DO NOT MERGE] Reject non-ASCII hostnames and SANs. am: 73bf5b6f1d -s ours am: 2611dfe767

Original change: https://googleplex-android-review.googlesource.com/c/platform/libcore/+/13140220

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I1077ec733d0d6cdc3273715057e0d35dcc311ed7