iwlwifi: mvm: support D0I3_END_CMD at the start of resume

New FW versions require the D0I3_END_CMD to be sent as the first
command to the FW in the resume flow.  If the TLV is set, send that
command first, otherwise keep the original behavior (i.e. send last).

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>