v4l2: Adds support for codec config

Adds support for codec config flag to be passed
to driver. This flag indicates that the buffer
associated contains codec specific data.

Change-Id: I80cfedc02dfc1efc8727f97e90ac2100e47d2f2a
Signed-off-by: Praneeth Paladugu <ppaladug@codeaurora.org>
diff --git a/include/linux/videodev2.h b/include/linux/videodev2.h
index 66b68d0..78b5b84 100644
--- a/include/linux/videodev2.h
+++ b/include/linux/videodev2.h
@@ -2088,6 +2088,8 @@
 	};
 };
 
+#define V4L2_QCOM_BUF_FLAG_CODECCONFIG	0x4000
+
 /* Decoder commands */
 #define V4L2_DEC_CMD_START       (0)
 #define V4L2_DEC_CMD_STOP        (1)