Merge "Rewrite RKP readme in terms of DICE" am: 139b663e38 am: e8821b0fd6 am: aae23ac225 am: 7589384303

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/2597060

Change-Id: I7f2d940bc9a568eae43b8fc99cf44d1bb3041569
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>