Memtest86+: Match function declaration with function definition

Change-Id: I5c2763ce438aa8a2fb136db450d0e407111ab415
Signed-off-by: Martin Roth <martinroth@google.com>
Reviewed-on: https://review.coreboot.org/14179
Tested-by: build bot (Jenkins)
Reviewed-by: Werner Zeh <werner.zeh@siemens.com>
diff --git a/error.c b/error.c
index 31e3e4b..d5347f2 100644
--- a/error.c
+++ b/error.c
@@ -25,7 +25,7 @@
 
 static void update_err_counts(void);
 static void print_err_counts(void);
-static void common_err();
+static void common_err(ulong *adr, ulong good, ulong bad, ulong xor, int type);
 static int syn, chan, len=1;
 
 /*
@@ -624,4 +624,3 @@
 	poll_errors();
 */
 }
-