linux-phytec-fsl

MLK-14800: fbdev: Refactor printed information

Debug info should not be printed using pr_info on init. Use pr_debug
instead.
Also, verify the cable state before reading the EDID. There is no point
in trying to read EDID (and print an error message), when there is no
device connected to HDMI connector.

Signed-off-by: Robert Chiras <robert.chiras@nxp.com>