[rv_dm] Gate JTAG in/out signals with life cycle
[rv_dm] Gate JTAG in/out signals with life cycle

This is added for additional protection when we are
in a non-hw-debug-enabled life cycle stated.

Signed-off-by: Michael Schaffner <a005a2d3342a687ea2d05360c953107acbe83e08@opentitan.org>

lowRISC/opentitan,lowRISC/opentitan,lowRISC/opentitan,lowRISC/opentitan,lowRISC/opentitan,lowRISC/opentitan