vidc: Add metabuffer mode support for encoder driver.

Video encoder driver when configured in meta buffer mode,
will allow clients to register buffers in data path.

Change-Id: I23e2cb07386461275da5731134d8aad7df1cd060
Signed-off-by: Gopikrishnaiah Anandan <gopikr@codeaurora.org>
diff --git a/include/linux/msm_vidc_enc.h b/include/linux/msm_vidc_enc.h
index 12c7afd..45199cb 100644
--- a/include/linux/msm_vidc_enc.h
+++ b/include/linux/msm_vidc_enc.h
@@ -435,6 +435,9 @@
 #define VEN_IOCTL_GET_NUMBER_INSTANCES \
 	_IOR(VEN_IOCTLBASE_ENC, 46, struct venc_ioctl_msg)
 
+#define VEN_IOCTL_SET_METABUFFER_MODE \
+	_IOW(VEN_IOCTLBASE_ENC, 47, struct venc_ioctl_msg)
+
 struct venc_switch{
 	unsigned char	status;
 };