Camera2: Heic: Reduce FRAME_RATE in case no grid is used

Only set FRAME_RATE to grid counts in case grid is used. In case grid is
not used (for example, in HEIC encoder case), set it to a predefined
value.

Test: Vendor testing
Bug: 140249376
Change-Id: I6b32bd435aa38f05004710ba667807ca841e4a5e
1 file changed