Used for getting the path to the character device under linux for uart
device. i.e. "/dev/ttyS0"
Adds paths to existing platforms.
Closes#84
Signed-off-by: Thomas Ingleby <thomas.c.ingleby@intel.com>
They needed offsetting by +1, due to starting the config at 1 instead of
0 as it was during development
Signed-off-by: Thomas Ingleby <thomas.c.ingleby@intel.com>