Since RTT is architecture agnostic, add support for using it on the ARC architecture as well. Change-Id: Icd0dec105177a1a224bfb1a63f0be5f03561b166 Signed-off-by: Chris Friedt <cfriedt@tenstorrent.com> Reviewed-on: https://review.openocd.org/c/openocd/+/8720 Reviewed-by: zapb <dev@zapb.de> Tested-by: jenkins Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>