runners: promote --no-load argument into common code and add support in stlink_gdbrunner#98798

nashif merged 2 commits intozephyrproject-rtos:mainzephyrproject-rtos/zephyr:mainfrom

mathieuchopstm:stlink_gdb_runner_noloadmathieuchopstm/zephyr:stlink_gdb_runner_noloadCopy head branch name to clipboard