MLK-16207-2 drm/bridge: it6263: 2nd time to workaround cable detection failure

There is cable detection failure issue on i.MX8qxp MEK platform at boot
time when we use single LVDS to HDMI display.  The workaround is to read
the cable detection status for even more times.  Based on experiments, it
looks reading for 90 times works.

Signed-off-by: Liu Ying <victor.liu@nxp.com>