USB: phy-msm: Put PHY into SIDDQ for wall charger during bootup

Currentlty USB driver is not putting PHY into SIDDQ with wall charger
connected during bootup and also not allowing VDD minimization even though
SMB hardware does charger detection. Hence fix this by making change
for proper dcp condition in suspend callback.

Change-Id: If403fe27e0f8076d378839b664e0da8618c49628
Signed-off-by: Vijayavardhan Vennapusa <vvreddy@codeaurora.org>