usb: phy: Add snapshot of changes from msm-3.10

Squash and apply the following usb phy driver changes taken
from the msm-3.10 kernel branch as of msm-3.10 commit
71fd06e8b45d	("Merge defconfig: msm8976: Enable gladiator error
		  reporting")

924fa1186aa5	usb: phy: qmp: Turn off usb30_pipe3_clk upon bus suspend
726fa4fb6c87	usb: phy: Assert usb3_phy_vls_clamp_en as part of enabling
		autonomous mode
6760e3ec2363	usb: qmp: phy: Clear LFPS RXTERM irq upon bus suspend
67280fc1602f	usb: qmp: phy: Add misc configuration for QMP PHY rev1
2a0584b52f2c	usb: phy: qmp: Fix unbalanced regulator disable when
		charger connected
921369edd700	usb: phy: qmp: Update QMP PHY parameters for
		msmzirc and 8994
887cc75c602c	usb: phy: qusb: Bring phy to non-driving mode upon
		disconnect
e499073d28ed	USB: Add support for emulator platforms

Change-Id: Ie3294f0a4e81604fda2fff58ca1be0acadb48736
Signed-off-by: Azhar Shaikh <azhars@codeaurora.org>