rde1edge/run_model: print uart logs location and model launch cmd

Refactor RD-E1-Edge's run_model.sh script to print the full path of all
the UART logs and the full model launch command.

Signed-off-by: Vijayenthiran Subramaniam <vijayenthiran.subramaniam@arm.com>
Change-Id: I3839b083239ce5f56c9f10e1088500b7634e6a54