MAINTAINERS: Remove stale entry for SBL platform driver

Maurice is no longer with Intel and his e-mail address is no longer
active. Remove the stale entry from Slim boot loader section.

Signed-off-by: Jithu Joseph <jithu.joseph@intel.com>
Link: https://lore.kernel.org/r/20231102195218.143440-1-jithu.joseph@intel.com


Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>