trivial: fix typo "for for" in multiple files

trivial: fix typo "for for" in multiple files

Signed-off-by: Anand Gadiyar <gadiyar@ti.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/drivers/usb/host/ehci.h b/drivers/usb/host/ehci.h
index 2bfff30..48b9e88 100644
--- a/drivers/usb/host/ehci.h
+++ b/drivers/usb/host/ehci.h
@@ -37,7 +37,7 @@
 #define __hc16	__le16
 #endif
 
-/* statistics can be kept for for tuning/monitoring */
+/* statistics can be kept for tuning/monitoring */
 struct ehci_stats {
 	/* irq usage */
 	unsigned long		normal;