Add an extra newline when writing to the serial console
Add an extra newline when writing to the serial console

Sometimes, the BMC puts junk in the serial console. The junk in
the console will sometimes make it into a command, so instead of
running 'echo Hello' the BMC may try to run something like
';180echo Hello', causing an otherwise legitimate command
to fail. Adding another newline helps to guard against
this junk from getting into the console.

Change-Id: I633081c1522232539c0c41ef548c3ac4b97d4b18
Signed-off-by: Charles Paul Hofer <08feea5166a3d3d271f0e9271c1c675fb81e7eda@ibm.com>

openbmc/openbmc-test-automation,openbmc/openbmc-test-automation