Fixed ssh_pw not found in 'Create OS Console Command String'.
Fixed ssh_pw not found in 'Create OS Console Command String'.

Also, in 'Stop SOL Console Logging', changed the 'cat ${log_file_path}'
to be quiet when the log file doesn't exist.

Resolves openbmc/openbmc-test-automation#1027

Change-Id: I109f62ed7fc69df418822e0f6334b6ddfd157864
Signed-off-by: Michael Walsh <10404802c7de463f402c4a18638106ca1b12ef61@us.ibm.com>

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