Both i.MX8QM and i.MX8DXL use the fallback fsl,scu-clk compatible.
They rely on the same driver generic part as the i.MX8QXP, so
lets add it to i.MX8QXP too, for consitency.
Signed-off-by: Abel Vesa <abel.vesa@nxp.com> Signed-off-by: Viorel Suman <viorel.suman@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>