scsi: ufs: Fix phy init sequence

Phy init is assumed to be done during powerup sequence.
The phy init is now being invoked during clock init as
well. At this point in initialization the phy mode and
submode is not yet set. So the phy initialization puts
the phy in a weird state. It also increments the counters
that prevent re-init and re-power-on of the phy.
Thus, when the phy init is invoked during powerup sequence,
it just returns thus leading to failures during controller
enable.

This patch fixes this by removing the phy init during
clock init.

The ufs device reset traditionally uses pinctrl.
This patch moves it to gpio based reset.

Change-Id: Id9205185b042e4f11fc4132419a179ba81af7226
Signed-off-by: Asutosh Das <asutoshd@codeaurora.org>
Signed-off-by: Bao D Nguyen <nguyenb@codeaurora.org>
Signed-off-by: Can Guo <cang@codeaurora.org>