Cuttlefish: use random root key for RKP am: fbb2bd99e0 am: 71b8de6aa3 am: 2e7f6f02e4

Original change: https://android-review.googlesource.com/c/platform/system/keymaster/+/1768977

Change-Id: Ic76e612b9129699a2a9343acd84a509a9afd2db9