This is needed for the ConnectCard for MX28 bluetooth variants.
It is created by mdev in del-image-minimal and udev needs to do it in
del-image-graphical.
We are appending to the 10-imx.rules file which already exists in
meta-fsl-arm.
https://jira.digi.com/browse/DEL-450
Signed-off-by: Alex Gonzalez <alex.gonzalez@digi.com>