USB: Convert a dev_info to a dev_dbg

Knowing which configuration was chosen is a debugging aid more than it
is informational.

Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/usb/core/generic.c b/drivers/usb/core/generic.c
index 05e6d31..bdf87a8 100644
--- a/drivers/usb/core/generic.c
+++ b/drivers/usb/core/generic.c
@@ -139,7 +139,7 @@
 
 	if (best) {
 		i = best->desc.bConfigurationValue;
-		dev_info(&udev->dev,
+		dev_dbg(&udev->dev,
 			"configuration #%d chosen from %d choice%s\n",
 			i, num_configs, plural(num_configs));
 	} else {