feat(sgi): update rdn2edgex2's runtime config

update rdn2edgex2's run-config to search the right uart port for
expect messages.

Signed-off-by: Rohit Mathew <rohit.mathew@arm.com>
Change-Id: Ie14401f3c040d6294a24a059e2f15e288cc46ebe
1 file changed