remove trailing whitespace

Change-Id: Ib91889a374515d36a2b12b53aeb12b6ea6e22732
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/364
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>

util/superiotool/amd.c

@@ -90,7 +90,7 @@ uint16_t detect_ec(void)
 		return 0;
 
 	ec_port = pci_read_word(dev, 0xa4);
-	
+
 	if (!(ec_port & 0x1))
 		return 0;