Merge "Use IkeProtocolException#getErrorType() to identify a specific error" am: 7a50e7f206 am: b9b0d644a7 am: 735d9fe220

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1672427

Change-Id: I5ef61feb984e8562617853c178b19e93beb08bb2