Merge "Keystore 2.0: Reinstate the default busy handler." am: 2bd70bf11f am: ec7353f01d am: b196523b69

Original change: https://android-review.googlesource.com/c/platform/system/security/+/1702826

Change-Id: Ibb8a15c2fa39a09f35c5e90c9bf7d8d760847893