gralloc: add IAllocator/IMapper 4.0 to camera HIDL

Add support for gralloc 4.0 to camera interface.

Bug: 136016160
Test: VtsHalCameraProviderV2_4TargetTest on a pixel
      with a local rev'd version of gralloc 4.0.

Change-Id: I7f2e14c291fbdafcb68c1e9c6e94fed87d810191