cxl: mce: fix typo "notifer"

cxl: mce: fix typo "notifer"

According to the context, "mce_notifer" should be "mce_notifier".

Link: https://lkml.kernel.org/r/E1EB1BA9FDF07D53+20250722073431.21983-2-wangyuli@uniontech.com
Fixes: 516e5bd0b6bf ("cxl: Add mce notifier to emit aliased address for extended linear cache")
Signed-off-by: WangYuli <wangyuli@uniontech.com>
Reviewed-by: Jonathan Cameron <jonathan.cameron@huawei.com>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>