drm/amd/display: Add bios firmware info version for VG12

VG12 shows minor revision version of 2 which is not handled in
bios_parser_get_firmware_info() routine.
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Jerry (Fangzhi) Zuo <Jerry.Zuo@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c

@@ -1321,6 +1321,7 @@ static enum bp_result bios_parser_get_firmware_info(
 		case 3:
 			switch (revision.minor) {
 			case 1:
+			case 2:
 				result = get_firmware_info_v3_1(bp, info);
 				break;
 			default: