usb: phy: Reset and initialize HSPHY in host mode when EUD is enable

EUD HUB functionality is relevant into USB device mode only. Hence when
using USB host mode, continue performing reset and initialization
functionality with HSPHY even though EUD is enable. If EUD is enable
while starting host mode, re-enable EUD whie exiting host mode.

Change-Id: Ifc2a105d8a02511dd2fc58be5fbc788d46546ba0
Signed-off-by: Mayank Rana <mrana@codeaurora.org>