image_types_fsl.bbclass: Use 69K as offset to load image

The U-Boot mainline uses 69K as offset so we ought to use it here;
this aligns the SD card image layout to work out of box with all
U-Boot mainline based SPL boards.

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
gpu-viv-bin-mx6q: Remove patch files which are unused

Some patches were not removed while updating the recipe. This dropes
the left over files to remove them from the layer.

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>