ARM: imx_v6_v7_defconfig: Select ULPI support

Select CONFIG_USB_CHIPIDEA_ULPI and CONFIG_USB_ULPI_BUS so that
USB ULPI can be functional on some boards like imx51-babbge.

This fixes a kernel hang in 4.18-rc1 on i.mx51-babbage, caused by commit
03e6275ae381 ("usb: chipidea: Fix ULPI on imx51").

Suggested-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm/configs/imx_v6_v7_defconfig

@@ -302,6 +302,7 @@ CONFIG_USB_STORAGE=y
 CONFIG_USB_CHIPIDEA=y
 CONFIG_USB_CHIPIDEA_UDC=y
 CONFIG_USB_CHIPIDEA_HOST=y
+CONFIG_USB_CHIPIDEA_ULPI=y
 CONFIG_USB_SERIAL=m
 CONFIG_USB_SERIAL_GENERIC=y
 CONFIG_USB_SERIAL_FTDI_SIO=m
@@ -338,6 +339,7 @@ CONFIG_USB_GADGETFS=m
 CONFIG_USB_FUNCTIONFS=m
 CONFIG_USB_MASS_STORAGE=m
 CONFIG_USB_G_SERIAL=m
+CONFIG_USB_ULPI_BUS=y
 CONFIG_MMC=y
 CONFIG_MMC_SDHCI=y
 CONFIG_MMC_SDHCI_PLTFM=y