drivers/console: Ignore characters when runnning out of buffer space

To clean up the logic and prepare for more control character support,
change the behavior so that instead of treating end of buffer as a
forced line break simply stop incrementing the position variable until
getting a carriage return.

Change-Id: Ie3970cb779dac3c826a3d21cf0b9ae57a43eddb2
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
1 file changed