usb: hwa: add USB build dependency for USB_HWA_HCD

An HWA is a USB device so it depends on USB.
Signed-off-by: NThomas Pugliese <thomas.pugliese@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/host/Kconfig

@@ -709,7 +709,7 @@ config USB_WHCI_HCD
 
 config USB_HWA_HCD
 	tristate "Host Wire Adapter (HWA) driver"
-	depends on UWB
+	depends on USB && UWB
 	select USB_WUSB
 	select UWB_HWA
 	help