phy: qcom-ufs: move PHY configurations after vregs and clocks are enabled

PHY congifuration actions should come only after regulators and clocks are
enabled.

Change-Id: Ib1c10d0b1d25d41b59d724f0a2d301ac6cd7f219
Signed-off-by: Can Guo <cang@codeaurora.org>