dt-bindings: remoteproc: imx_rproc: Support i.MX8QM

Add i.MX8QM compatible.

Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Link: https://lore.kernel.org/r/20221021041526.3696483-3-peng.fan@oss.nxp.com


Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>