media: rc: mtk-cir: add MAINTAINERS entry for MediaTek CIR driver

I work for MediaTek on maintaining the MediaTek CIR driver
for the existing SoCs and adding support for the following
SoCs.

Signed-off-by: Sean Wang <[e-mail]>
Signed-off-by: Sean Young <[e-mail]>
Signed-off-by: Mauro Carvalho Chehab <[e-mail]>

MAINTAINERS

···
 S:	Maintained
 F:	drivers/net/wireless/mediatek/mt7601u/
 
+MEDIATEK CIR DRIVER
+M:	Sean Wang <[e-mail]>
+S:	Maintained
+F:	drivers/media/rc/mtk-cir.c
+
 MEDIATEK RANDOM NUMBER GENERATOR SUPPORT
 M:	Sean Wang <[e-mail]>
 S:	Maintained