sh64: Use generic BUG_ON()/WARN_ON().

sh64 doesn't need to do anything special for BUG_ON() or
WARN_ON(), use the generic versions.
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

include/asm-sh64/bug.h

 #ifndef __ASM_SH64_BUG_H
 #define __ASM_SH64_BUG_H
 
-
+#ifdef CONFIG_BUG
 /*
  * Tell the user there is some problem, then force a segfault (in process
  * context) or a panic (interrupt context).
@@ -11,17 +11,9 @@
 	*(volatile int *)0 = 0; \
 } while (0)
 
-#define BUG_ON(condition) do { \
-	if (unlikely((condition)!=0)) \
-		BUG(); \
-} while(0)
+#define HAVE_ARCH_BUG
+#endif
 
-#define WARN_ON(condition) do { \
-	if (unlikely((condition)!=0)) { \
-		printk("Badness in %s at %s:%d\n", __FUNCTION__, __FILE__, __LINE__); \
-		dump_stack(); \
-	} \
-} while (0)
+#include <asm-generic/bug.h>
 
 #endif /* __ASM_SH64_BUG_H */
-