Add configuration for the Renesas R-Car Salvator-X and Renesas R-Car Salvator-XS boards. Change-Id: I898008f56adb31908d30760f18217583fabf1c51 Signed-off-by: Adam Bass <adam.bass@renesas.com> Reviewed-on: http://openocd.zylin.com/4670 Tested-by: jenkins Reviewed-by: Matthias Welwarsky <matthias@welwarsky.de>