linux-phytec-fsl

powerpc/fsl: add device tree binding for QE firmware

Define a binding for embedding a QE firmware blob into the device tree.  Also
define a new property for the QE node that links to a firmware node.

Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>