[SPARC]: Merge asm-sparc{,64}/bug.h

Note that because of minimum compiler version enforcement in
linux/compiler.h these days the check for sparc32 buggy
__builtin_trap() can be safely removed.

Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/asm-sparc64/bug.h b/include/asm-sparc64/bug.h
index 516bb27..3433737 100644
--- a/include/asm-sparc64/bug.h
+++ b/include/asm-sparc64/bug.h
@@ -1,22 +1 @@
-#ifndef _SPARC64_BUG_H
-#define _SPARC64_BUG_H
-
-#ifdef CONFIG_BUG
-#include <linux/compiler.h>
-
-#ifdef CONFIG_DEBUG_BUGVERBOSE
-extern void do_BUG(const char *file, int line);
-#define BUG() do {					\
-	do_BUG(__FILE__, __LINE__);			\
-	__builtin_trap();				\
-} while (0)
-#else
-#define BUG()		__builtin_trap()
-#endif
-
-#define HAVE_ARCH_BUG
-#endif
-
-#include <asm-generic/bug.h>
-
-#endif
+#include <asm-sparc/bug.h>