MIPS: Octeon: remove duplicated include from dma-octeon.c

Remove duplicated include.
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: Jiaxun Yang <jiaxun.yang@flygoat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Mike Rapoport <rppt@linux.ibm.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: <linux-mips@vger.kernel.org>
Cc: <kernel-janitors@vger.kernel.org>

arch/mips/cavium-octeon/dma-octeon.c

@@ -16,7 +16,6 @@
 #include <linux/types.h>
 #include <linux/init.h>
 #include <linux/mm.h>
-#include <linux/memblock.h>
 
 #include <asm/bootinfo.h>