USB: Spelling fixes

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index b0f9873..bcc4213 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -915,7 +915,7 @@
 	}
 	
 	if (data_interface_num != call_interface_num)
-		dev_dbg(&intf->dev,"Seperate call control interface. That is not fully supported.\n");
+		dev_dbg(&intf->dev,"Separate call control interface. That is not fully supported.\n");
 
 skip_normal_probe: