gralloc3: add sepolicy for allocator/mapper 3.0

IAllocator and IMappaer are being rev'd to 3.0. Update sepolicy to
allow them to be used.

Test: compile with allocator/mapper patches add boot the device
Bug: 120493579
Change-Id: Id241c6bd79c02ec93d8dd415539f90a18f733d03
1 file changed