V4L/DVB (6178): add IR remote support for FusionHDTV 5 RT Gold

This patch adds support for the built-in IR receiver of the DViCO
Fusion HDTV5 RT GOLD PCI card, using FusionHDTV MCE remote controller.

Signed-off-by: Chaogui Zhang <czhang1974@gmail.com>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>