memblock: include <asm/sections.h> instead of <asm-generic/sections.h>

asm-generic headers are generic implementations for architecture
specific code and should not be included by common code.  Thus use the
asm/ version of sections.h to get at the linker sections.

Link: http://lkml.kernel.org/r/1468285103-7470-1-git-send-email-hch@lst.de
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

mm/memblock.c

@@ -20,7 +20,7 @@
 #include <linux/seq_file.h>
 #include <linux/memblock.h>
 
-#include <asm-generic/sections.h>
+#include <asm/sections.h>
 #include <linux/io.h>
 
 #include "internal.h"