Merge "[keystore2] Update comment when fetching rkpd attestation key" into main am: 0ecec06af2

Original change: https://android-review.googlesource.com/c/platform/system/security/+/2845534

Change-Id: Ic9875170ce43bd7cce719d53daeb77e978f22e6b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>