firmware: MMAL: Update to latest container code

firmware: ril_top: fix for setting parameter sizes on get_parameter
Fixes issue with image_encode returning errors from openmax

vchi: Remove unimplemented vchi_exit prototype

firmware: image_fx: Ensure pending_vc_image is reset when clearing vc_image
Fixes issue when flushing image_fx

firmware: arm_display: Handle display closed without busy spinning or asserts
See: http://www.raspberrypi.org/forums/viewtopic.php?f=43&t=84889&p=603505

mmal: Plumb in OMX_IndexConfigCommonInterlace to mmal