Add audio V7 to compatility matrix.

All HIDL HALs defined in the source tree must be specified
in some framework compatibility matrix.

Bug: 110261831
Test: builds
Change-Id: I98a0798cc08761e8aa6a9ca920c67aa6f8155de4
Merged-In: I98a0798cc08761e8aa6a9ca920c67aa6f8155de4