Migrate CONFIG_ULPI* to Kconfig

Move CONFIG_USB_ULPI* from headers to defconfigs for boards that use it.
Also - add CONFIG_USB where necesarry - all boards use it,
but some are not defining it explicitly.

Affected boards:
colibri_t20, harmony, mcx, mt_ventoux, twister,
zynq_(picozed, zc702, zc706, zed, zybo)

Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/configs/mt_ventoux_defconfig b/configs/mt_ventoux_defconfig
index c537440..45913d4 100644
--- a/configs/mt_ventoux_defconfig
+++ b/configs/mt_ventoux_defconfig
@@ -10,3 +10,6 @@
 # CONFIG_CMD_SETEXPR is not set
 CONFIG_SYS_NS16550=y
 CONFIG_OF_LIBFDT=y
+CONFIG_USB=y
+CONFIG_USB_ULPI=y
+CONFIG_USB_ULPI_VIEWPORT_OMAP=y