media: dt-bindings: dw9714, dw9807-vcm: Add files to MAINTAINERS, rename files

Add the DT binding documentation for dw9714 and dw9807-vcm to the
MAINTAINERS file. The dw9807-vcm binding documentation file is renamed to
match the dw9807's VCM bit's compatible string.

Signed-off-by: Sakari Ailus <[e-mail]>
Signed-off-by: Mauro Carvalho Chehab <[e-mail]>

MAINTAINERS

···
 T:	git git://linuxtv.org/media_tree.git
 S:	Maintained
 F:	drivers/media/i2c/dw9714.c
+F:	Documentation/devicetree/bindings/media/i2c/dongwoon,dw9714.txt
 
 DONGWOON DW9807 LENS VOICE COIL DRIVER
 M:	Sakari Ailus <[e-mail]>
···
 T:	git git://linuxtv.org/media_tree.git
 S:	Maintained
 F:	drivers/media/i2c/dw9807.c
+F:	Documentation/devicetree/bindings/media/i2c/dongwoon,dw9807-vcm.txt
 
 DOUBLETALK DRIVER
 M:	"James R. Van Zandt" <[e-mail]>