calibrator: move power on and off out of the plt_do_calibrate function
calibrator: move power on and off out of the plt_do_calibrate function

We will need to keep the power on after doing BiP in order to read the
MAC from the fuse (and possibly other features in the future).  Thus,
we need to move the power_on/power_off calls out of the
plt_do_calibrate() function.

Signed-off-by: Luciano Coelho <d1ef580865f8eb2e1d1c65bc406aba322cc98f3e@ti.com>

vigeltek/ti-utils,vigeltek/ti-utils,vigeltek/ti-utils