Add CMDQ support for imx8qm/imx8qxp.
Signed-off-by: NHaibo Chen <haibo.chen@nxp.com>
Acked-by: NAdrian Hunter <adrian.hunter@intel.com>
[Ulf: Rebased on top of latest changes]
Signed-off-by: NUlf Hansson <ulf.hansson@linaro.org>