V4L/DVB (5486): Add support for remote of Asustech P7131 Hybrid LNA

This patch just defines the remote control type.

Signed-off-by: Ed Vipas <epvipas@gmail.com>
Signed-off-by: Hartmut Hackmann <hartmut.hackmann@t-online.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>