DT support : Change pin definitions

- Make the pinout [8Y,0,0,8CrCb,0,0] on 19:0
FPGA is routing signals
- Add GPIO support for HDMI hotplug
MC must be selected in order to compile
media: ADV7604: remove unused message and change default pwndb pin

This should be parsed in DT
media: mx6 camera: Support BT.1120

This patch is a bit hacky but works well.
In order to get the correct YUYV format from adv7611, setting the 0x03
register to 0x80 is manually required. This should be done when setting
format and DV timings.