msm: camera: Change data type of data rate

Change data rate to uint64, to ensure that the value sent
to kernel is not corrupted.

Change-Id: I692c1c3e591cbac24931078e0fb8938900fc991c
Signed-off-by: Samyukta Mogily <smogily@codeaurora.org>
diff --git a/include/uapi/media/msm_camera.h b/include/uapi/media/msm_camera.h
index c58a273..7b2b966 100644
--- a/include/uapi/media/msm_camera.h
+++ b/include/uapi/media/msm_camera.h
@@ -1392,7 +1392,7 @@
 	uint16_t lane_mask;
 	uint8_t combo_mode;
 	uint8_t csid_core;
-	unsigned long data_rate;
+	uint64_t data_rate;
 };
 
 struct msm_camera_csi2_params {