crypto: ice: fix ICE HW setup sequence

ICE driver should setup ICE hardware before any caller can configure
keys in ICE hardware. Currently, ICE sets up clocks, bus vote and power
regulator respectively. This order is a little wrong as setting up
clocks could fail if power regulator is not enabled.

Change-Id: I980abd9c55ce22dac1272d57c4d1af7e8960d4da
Signed-off-by: Dinesh K Garg <dineshg@codeaurora.org>