include/linux/filter.h: use set_memory.h header

set_memory_* functions have moved to set_memory.h.  Switch to this
explicitly.

Link: http://lkml.kernel.org/r/1488920133-27229-11-git-send-email-labbott@redhat.com
Signed-off-by: Laura Abbott <labbott@redhat.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

include/linux/filter.h

@@ -19,7 +19,9 @@
 
 #include <net/sch_generic.h>
 
-#include <asm/cacheflush.h>
+#ifdef CONFIG_ARCH_HAS_SET_MEMORY
+#include <asm/set_memory.h>
+#endif
 
 #include <uapi/linux/filter.h>
 #include <uapi/linux/bpf.h>