8660: wlan: Always initialize regulators when WLAN is turned on

In case of LOGP recovery Wifi is soft reset. During soft reset,
observe that regulator_get() is not called for all regulators.
This is leading to null pointer dereference by kernel when
regulator_put() is called while turning of Wifi.

Change-Id: Icff3713bf429566cd013349b60f601f98d9fb5da
Signed-off-by: Deepthi Gowri <deepthi@codeaurora.org>