Itemized CDM dialog permissions for VDM roles

with a static list of permissions.

Removing the always unlocked display item and combining it with
the trusted display one because they're always granted together.

Bug: 402786380
Test: manual and CTS
Flag: android.companion.virtualdevice.flags.itemized_vdm_permissions

Change-Id: I940d0025b7fea54b95f0a92f4c756784200ebcdf