setup-gummiboot-conf: Disable VGA output in splash-hdmi .conf
This is a supplementary patch on top of
40e26bbb19f0450a0495263798ebe6cee4e736ae
*splash-hdmi.conf is primarily used by Minnowboard MAX. The board
only contains a mini-HDMI port and VGA/DP ports are not available.
Therefore, also VGA needs to be disabled to avoid GMBUS timeout.
v2: Update commit log
Change-Id: I6d5776959f1b3b185f71cdcd770c4e973c2fae66
Bug-Tizen: TC-2195/part
Signed-off-by: Fang, Neo <neo.fang@intel.com>
Signed-off-by: Mikko Ylinen <mikko.ylinen@intel.com>