west debugserver: openocd: configure rtos

This enables thread awareness in the spawned OpenOCD server.

Signed-off-by: Bruno Mendes <bd_mendes@outlook.com>

scripts/west_commands/runners/openocd.py

@@ -356,6 +356,11 @@ def do_debugserver(self, **kwargs):
             pre_init_cmd.append("-c")
             pre_init_cmd.append(i)
 
+        if self.thread_info_enabled and self.supports_thread_info():
+            pre_init_cmd.append("-c")
+            rtos_command = '${} configure -rtos Zephyr'.format(self.target_handle)
+            pre_init_cmd.append(rtos_command)
+
         cmd = (self.openocd_cmd + self.cfg_cmd +
                ['-c', 'tcl_port {}'.format(self.tcl_port),
                 '-c', 'telnet_port {}'.format(self.telnet_port),