Blackfin arch: move include/asm-blackfin header files to arch/blackfin

Signed-off-by: Bryan Wu <cooloney@kernel.org>

arch/blackfin/include/asm/bugs.h

@@ -0,0 +1,16 @@
+/*
+ *  include/asm-blackfin/bugs.h
+ *
+ *  Copyright (C) 1994  Linus Torvalds
+ */
+
+/*
+ * This is included by init/main.c to check for architecture-dependent bugs.
+ *
+ * Needs:
+ *	void check_bugs(void);
+ */
+
+static void check_bugs(void)
+{
+}