default already is jtag, but this silences a warning during startup. Change-Id: I94478327bbb259649500ef74a5b5c10d51e2a517 Signed-off-by: Felipe Balbi <balbi@ti.com> Reviewed-on: http://openocd.zylin.com/2612 Tested-by: jenkins Reviewed-by: Tom Rini <trini@konsulko.com> Reviewed-by: Paul Fertser <fercerpav@gmail.com>