MAINTAINERS: update iwlwifi maintainers

Add Miri as a maintainer for iwlwifi driver.

Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20231106100759.1226662-1-gregory.greenman@intel.com


Signed-off-by: Johannes Berg <johannes.berg@intel.com>