usb: phy: Do not perform phy reset if EUD is enabled

If EUD is enabled and phy reset is performed due to
spoof connect, EUD enumeration fails. Fix this issue
by reading EUD enable register before phy init. Check
the status in and msm_hsphy_dpdm_regulator_enable()
which also performs phy reset.

Change-Id: I8f473c4e50611e1f444719ee498e3e49ae82cbe1
Signed-off-by: Hemant Kumar <hemantk@codeaurora.org>