Since the event callback imx9_probe_mu is re-defined, update its prototype. Signed-off-by: Ye Li <ye.li@nxp.com>
Put imx9_probe_mu declaration in a new mu.h header file. Signed-off-by: Mathieu Othacehe <othacehe@gnu.org> Reviewed-by: Igor Opaniuk <igor.opaniuk@foundries.io>