Added identity credential key to keymaster tag set. am: de4d82fc16 am: 2722b2bd63 am: da530f2e81

Original change: https://googleplex-android-review.googlesource.com/c/platform/hardware/libhardware/+/10597980

Change-Id: Iff0ecc13639887fb2f6ff68f3ef7bd46e982a768