V4L/DVB (9908a): MAINTAINERS: mark linux-uvc-devel as subscribers only

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 MAINTAINERS |    2 +-

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Acked-by: Laurent Pinchart <laurent.pinchart@skynet.be>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>