MAINTAINERS: Add xen-usb.c to Xen section

Signed-off-by: Anthony PERARD <[email protected]>
Acked-by: Paul Durrant <[email protected]>
Message-Id: <[email protected]>

Author: anthonyper-ctx

MAINTAINERS

@@ -440,6 +440,7 @@ F: hw/9pfs/xen-9p*
 F: hw/char/xen_console.c
 F: hw/display/xenfb.c
 F: hw/net/xen_nic.c
+F: hw/usb/xen-usb.c
 F: hw/block/xen*
 F: hw/block/dataplane/xen*
 F: hw/xen/