fix cmd_bdinfo.c:354: warning: 'print_eth' defined but not used

This fixes the following warnings when running MAKEALL for coldfire :
cmd_bdinfo.c:354: warning: 'print_eth' defined but not used

Signed-off-by: Philippe De Muyter <phdm at macqel.be>
diff --git a/common/cmd_bdinfo.c b/common/cmd_bdinfo.c
index f8400bc..d22eb66 100644
--- a/common/cmd_bdinfo.c
+++ b/common/cmd_bdinfo.c
@@ -31,7 +31,7 @@
 
 static void print_num(const char *, ulong);
 
-#if !defined(CONFIG_ARM) || defined(CONFIG_CMD_NET)
+#if !(defined(CONFIG_ARM) || defined(CONFIG_M68K)) || defined(CONFIG_CMD_NET)
 static void print_eth(int idx);
 #endif
 
@@ -350,7 +350,7 @@
 	printf ("%-12s= 0x%08lX\n", name, value);
 }
 
-#if !defined(CONFIG_ARM) || defined(CONFIG_CMD_NET)
+#if !(defined(CONFIG_ARM) || defined(CONFIG_M68K)) || defined(CONFIG_CMD_NET)
 static void print_eth(int idx)
 {
 	char name[10], *val;