USB: phy: msm: Apply DP pulse for CDP during bootup from sm_work

Currently driver is calling API to apply pulse from vbus notifier, but
it might lead to race condition during bootup and result in unclocked
access. Hence avoid applying DP pulse during bootup from vbus notifier
callback. Also enable LDOs and clocks only if usb is in lpm, else apply
DP pulse without enabling LDOs and clocks again.

Change-Id: I987d93de5261147481f3856254941091dedba108
Signed-off-by: Vijayavardhan Vennapusa <vvreddy@codeaurora.org>