ARM: msm: USB_MSM_OTG needs USB_PHY

The Kconfig entry for USB_EHCI_MSM unconditionally selects USB_MSM_OTG,
which is now only visible when USB_PHY is also enabled.

A dependency for this has been added in the USB tree, this adds the
now missing bit in the defconfig.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

arch/arm/configs/msm_defconfig

@@ -101,6 +101,7 @@ CONFIG_SND_DYNAMIC_MINORS=y
 CONFIG_SND_SOC=y
 CONFIG_HID_BATTERY_STRENGTH=y
 CONFIG_USB=y
+CONFIG_USB_PHY=y
 CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
 CONFIG_USB_MON=y
 CONFIG_USB_EHCI_HCD=y