Merge "Allow tee to access mnt_vendor_file" am: 435c1e8e7d am: ab07ab083b am: d787fc54a9

Original change: https://android-review.googlesource.com/c/device/google/redbull-sepolicy/+/1884509

Change-Id: I17591138873c716f421ff6f6a0fdaf1c4245bcbe