MAINTAINERS: add maintainer for msi-wmi driver

Signed-off-by: Anisse Astier <anisse@astier.eu>
Signed-off-by: Len Brown <len.brown@intel.com>

MAINTAINERS

@@ -3644,6 +3644,11 @@ W:	http://0pointer.de/lennart/tchibo.html
 S:	Maintained
 F:	drivers/platform/x86/msi-laptop.c
 
+MSI WMI SUPPORT
+M:	Anisse Astier <anisse@astier.eu>
+S:	Supported
+F:	drivers/platform/x86/msi-wmi.c
+
 MULTIFUNCTION DEVICES (MFD)
 M:	Samuel Ortiz <sameo@linux.intel.com>
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6.git