x86: crownbay: Convert to use CONFIG_DM_USB

Move to driver model for USB on Intel Crown Bay.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Joe Hershberger <joe.hershberger@ni.com>
Acked-by: Simon Glass <sjg@chromium.org>

configs/crownbay_defconfig

@@ -23,6 +23,8 @@ CONFIG_NETDEVICES=y
 CONFIG_E1000=y
 CONFIG_VIDEO_VESA=y
 CONFIG_FRAMEBUFFER_SET_VESA_MODE=y
+CONFIG_USB=y
+CONFIG_DM_USB=y
 CONFIG_DM_RTC=y
 CONFIG_USE_PRIVATE_LIBGCC=y
 CONFIG_SYS_VSNPRINTF=y