i.MX94 has a DDR Performance Monitor Unit which is compatible with i.MX93.
This will add a compatible for i.MX94.
Reviewed-by: Peng Fan <peng.fan@nxp.com> Reviewed-by: Frank Li <Frank.Li@nxp.com> Acked-by: Conor Dooley <conor.dooley@microchip.com> Signed-off-by: Xu Yang <xu.yang_2@nxp.com> Signed-off-by: Will Deacon <will@kernel.org>