usb: kill DEBUG compile option

In the drivers that no longer need it, it is removed.
It is removed from the Makefile. Drivers not fully converted
to dynamic debug have it shifted down into the individual
drivers.

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/usb/host/imx21-hcd.h b/drivers/usb/host/imx21-hcd.h
index c005770..05122f8 100644
--- a/drivers/usb/host/imx21-hcd.h
+++ b/drivers/usb/host/imx21-hcd.h
@@ -24,6 +24,10 @@
 #ifndef __LINUX_IMX21_HCD_H__
 #define __LINUX_IMX21_HCD_H__
 
+#ifdef CONFIG_DYNAMIC_DEBUG
+#define DEBUG
+#endif
+
 #include <linux/platform_data/usb-mx2.h>
 
 #define NUM_ISO_ETDS 	2