MAINTAINERS: Update the files list for the Rockchip DRM driver

The location listed is a folder - swap the wildcard with '/'

Cc: Mark Yao <[email protected]>
Cc: [email protected]
Signed-off-by: Emil Velikov <[email protected]>
Signed-off-by: Daniel Vetter <[email protected]>
Link: http://patchwork.freedesktop.org/patch/msgid/[email protected]

Author: evelikov

MAINTAINERS

@@ -3887,7 +3887,7 @@ M:	Mark Yao <[email protected]>
 L:	[email protected]
 S:	Maintained
 F:	drivers/gpu/drm/rockchip/
-F:	Documentation/devicetree/bindings/display/rockchip*
+F:	Documentation/devicetree/bindings/display/rockchip/
 
 DRM DRIVERS FOR STI
 M:	Benjamin Gaignard <[email protected]>