V4L/DVB (9062): Add support for Prolink Pixelview Global Extreme

Thanks to Sidney Matias <sidney.matias@gmail.com> for getting GPIO
values and testing on this device.

Cc: Sidney Matias <sidney.matias@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>