patch motion with mmal updates for greyworld AWB mode

motion could use a full upgrade of the mmal lib. Tried the last userland files but got stuck at some point. Compiling error I couldn't fix. Will be waiting for someone capable of doing this.

package/motion/0001-enable-awb-greyworld.patch

@@ -0,0 +1,35 @@
+diff --git a/raspicam/RaspiCamControl.c b/raspicam/RaspiCamControl.c
+index 073d657..ad0e405 100644
+--- a/raspicam/RaspiCamControl.c
++++ b/raspicam/RaspiCamControl.c
+@@ -73,7 +73,8 @@ static XREF_T awb_map[] =
+    {"fluorescent",   MMAL_PARAM_AWBMODE_FLUORESCENT},
+    {"incandescent",  MMAL_PARAM_AWBMODE_INCANDESCENT},
+    {"flash",         MMAL_PARAM_AWBMODE_FLASH},
+-   {"horizon",       MMAL_PARAM_AWBMODE_HORIZON}
++   {"horizon",       MMAL_PARAM_AWBMODE_HORIZON},
++   {"greyworld",     MMAL_PARAM_AWBMODE_GREYWORLD}
+ };
+ 
+ static const int awb_map_size = sizeof(awb_map) / sizeof(awb_map[0]);
+@@ -1196,6 +1197,7 @@ int raspicamcontrol_set_exposure_mode(MMAL_COMPONENT_T *camera, MMAL_PARAM_EXPOS
+  *   - MMAL_PARAM_AWBMODE_INCANDESCENT,
+  *   - MMAL_PARAM_AWBMODE_FLASH,
+  *   - MMAL_PARAM_AWBMODE_HORIZON,
++ *   - MMAL_PARAM_AWBMODE_GREYWORLD,
+  * @return 0 if successful, non-zero if any parameters out of range
+  */
+ int raspicamcontrol_set_awb_mode(MMAL_COMPONENT_T *camera, MMAL_PARAM_AWBMODE_T awb_mode)
+diff --git a/raspicam/RaspiCamControl.h b/raspicam/RaspiCamControl.h
+index f4c189a..e7a847f 100644
+--- a/raspicam/RaspiCamControl.h
++++ b/raspicam/RaspiCamControl.h
+@@ -57,6 +57,7 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+             MMAL_PARAM_AWBMODE_INCANDESCENT,
+             MMAL_PARAM_AWBMODE_FLASH,
+             MMAL_PARAM_AWBMODE_HORIZON,
++            MMAL_PARAM_AWBMODE_GREYWORLD,
+  *
+  * Image FX
+             MMAL_PARAM_IMAGEFX_NONE,
+