[PATCH] USB: hcd uses EXTRA_CFLAGS for -DDEBUG

This modifies the HCD builds to automatically "-DDEBUG" if
CONFIG_USB_DEBUG is selected.  It's just a minor source code cleanup,
guaranteeing consistency.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile
index 58321d3..e3020f4b 100644
--- a/drivers/usb/host/Makefile
+++ b/drivers/usb/host/Makefile
@@ -2,6 +2,10 @@
 # Makefile for USB Host Controller Drivers
 #
 
+ifeq ($(CONFIG_USB_DEBUG),y)
+	EXTRA_CFLAGS		+= -DDEBUG
+endif
+
 obj-$(CONFIG_PCI)		+= pci-quirks.o
 
 obj-$(CONFIG_USB_EHCI_HCD)	+= ehci-hcd.o