Align the target script to the handshake implemented in the latest version of stm32wrapper4dbg to get access to the debug port. Change-Id: Ia1c7773330fda776abb4385331fddbf431d11c39 Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com> Reviewed-on: https://review.openocd.org/c/openocd/+/8983 Tested-by: jenkins