MAINTAINERS: Fix up entry for Dell laptop SMM driver

Mark driver as maintained.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/MAINTAINERS b/MAINTAINERS
index ddb9ac8..2b41cd1 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -3012,6 +3012,7 @@
 
 DELL LAPTOP SMM DRIVER
 M:	Guenter Roeck <linux@roeck-us.net>
+S:	Maintained
 F:	drivers/char/i8k.c
 F:	include/uapi/linux/i8k.h