board: gdsys: Increase DP501 I2C retry interval

With Club 3D dual link adapter there are AUX-channel timeouts
when EDID is read. Increasing retry interval time to max (400us)
fixes this.

Signed-off-by: Dirk Eibach <dirk.eibach@gdsys.cc>
Reviewed-by: Heiko Schocher <hs@denx.de>
1 file changed