video: driver: increase output buffer count for HEIF decode

Increase output buffer min count value from 1 -> 3 to avoid
COMV buffer size calculation mismatch between driver and
firmware.

Change-Id: I9e5b011c8d1bb221dbc3c12797fc64831c0e1cec
Signed-off-by: Govindaraj Rajagopal <grajagop@codeaurora.org>

driver/vidc/src/msm_vidc_buffer.c

@@ -73,7 +73,7 @@ u32 msm_vidc_output_min_count(struct msm_vidc_inst *inst)
 			output_min_count = 9;
 			break;
 		case MSM_VIDC_HEIC:
-			output_min_count = 1;
+			output_min_count = 3;
 			break;
 		default:
 			output_min_count = 4;