USB: EHCI: fix build error by making ChipIdea host a normal EHCI driver

This patch (as1627) splits the ehci-hcd core code, which has become a
separate library module, out from the ChipIdea host driver.  Instead
of #include-ing ehci-hcd.c directly, the ChipIdea module will now use
the ehci-hcd library in a normal fashion.

This fixes a build error caused by commit
3e0232039967d7a1a06c013d097458b4d5892af1 (USB: EHCI: prepare to make
ehci-hcd a library module); I had forgotten about the unorthodox way
the ChipIdea driver uses the ehci-hcd code.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/usb/chipidea/Kconfig b/drivers/usb/chipidea/Kconfig
index 1ea932a..608a2ae 100644
--- a/drivers/usb/chipidea/Kconfig
+++ b/drivers/usb/chipidea/Kconfig
@@ -20,6 +20,7 @@
 config USB_CHIPIDEA_HOST
 	bool "ChipIdea host controller"
 	depends on USB=y || USB=USB_CHIPIDEA
+	depends on USB_EHCI_HCD
 	select USB_EHCI_ROOT_HUB_TT
 	help
 	  Say Y here to enable host controller functionality of the