mtd: nand: make nand_ooblayout_lp_hamming_ops static

nand_ooblayout_lp_hamming_ops can be made static as it does not need to be
in global scope.

Signed-off-by: Colin Ian King <[e-mail]>
Acked-by: Boris Brezillon <[e-mail]>
Signed-off-by: Boris Brezillon <[e-mail]>

drivers/mtd/nand/nand_base.c

···
 	return 0;
 }
 
-const struct mtd_ooblayout_ops nand_ooblayout_lp_hamming_ops = {
+static const struct mtd_ooblayout_ops nand_ooblayout_lp_hamming_ops = {
 	.ecc = nand_ooblayout_ecc_lp_hamming,
 	.free = nand_ooblayout_free_lp_hamming,
 };