HYD-1974: Add confirmation text for power control buttons
HYD-1974: Add confirmation text for power control buttons

The need for confirmation text on button press was overlooked when
this feature was landed.

Change-Id: I4021898f8e11268b628613e46a8c8fe4c4c6da31

intel-hpdd/intel-manager-for-lustre,intel-hpdd/intel-manager-for-lustre,intel-hpdd/intel-manager-for-lustre