configs: Add --semi-path option to baremetal.py

This is to make it possible to configure the semihosting
root directory via commandline.

Change-Id: If5167abc19eb8d78db37ebc854c336fe778a8a6f
Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Reviewed-by: Adrian Herrera <adrian.herrera@arm.com>
Reviewed-by: Ciro Santilli <ciro.santilli@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/27951
Tested-by: kokoro <noreply+kokoro@google.com>
1 file changed