Enable networking and console over the USB port

That one is much more friendly than the UART0 pin header.

Change-Id: I76affd2803eb2f18911eb71cbdfc1ffd6bf4fd76
diff --git a/board/czechlight/common/kconfig b/board/czechlight/common/kconfig
new file mode 100644
index 0000000..5004b78
--- /dev/null
+++ b/board/czechlight/common/kconfig
@@ -0,0 +1,3 @@
+# CONFIG_USB_ZERO is not set
+CONFIG_USB_CDC_COMPOSITE=m
+# CONFIG_USB_G_NOKIA is not set