msm: vidc: response handling

add response handling for commands, properties,
system and session errors.

Change-Id: I87a8cba136979d425d978dfe55317a3deb081c53
Signed-off-by: Darshana Patil <darshana@codeaurora.org>

driver/vidc/inc/msm_vidc_internal.h

@@ -299,6 +299,12 @@ enum profiling_points {
 	MAX_PROFILING_POINTS,
 };
 
+enum signal_session_response {
+	SIGNAL_CMD_STOP  = 0,
+	SIGNAL_CMD_CLOSE,
+	MAX_SIGNAL,
+};
+
 #define HFI_MASK_QHDR_TX_TYPE			0xFF000000
 #define HFI_MASK_QHDR_RX_TYPE			0x00FF0000
 #define HFI_MASK_QHDR_PRI_TYPE			0x0000FF00