MAINTAINERS: Add entry for Mali-DP driver

Add MAINTAINERS entry for ARM Mali-DP driver and update the
HDLCD file matching pattern to cover only HDLCD rather than
the whole drivers/gpu/drm/arm directory.
Signed-off-by: NLiviu Dudau <Liviu.Dudau@arm.com>

MAINTAINERS

@@ -865,9 +865,17 @@ F:	Documentation/devicetree/bindings/display/snps,arcpgu.txt
 ARM HDLCD DRM DRIVER
 M:	Liviu Dudau <liviu.dudau@arm.com>
 S:	Supported
-F:	drivers/gpu/drm/arm/
+F:	drivers/gpu/drm/arm/hdlcd_*
 F:	Documentation/devicetree/bindings/display/arm,hdlcd.txt
 
+ARM MALI-DP DRM DRIVER
+M:	Liviu Dudau <liviu.dudau@arm.com>
+M:	Brian Starkey <brian.starkey@arm.com>
+M:	Mali DP Maintainers <malidp@foss.arm.com>
+S:	Supported
+F:	drivers/gpu/drm/arm/
+F:	Documentation/devicetree/bindings/display/arm,malidp.txt
+
 ARM MFM AND FLOPPY DRIVERS
 M:	Ian Molton <spyro@f2s.com>
 S:	Maintained