drivers/console: Fix writing out carriage return on all terminals

Some terminals (e.g. screen) don't seem to propagate carriage returns
through, creating the following kind of results when pressing enter in
a shell:

btshell>
         btshell>
                  btshell>
                           btshell>

Fix this by always printing out '\r' when receiving a carriage return.

Change-Id: Ia5ce5612c9b830edc84619538dc17a654b6e805b
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
1 file changed