These two platforms didn't properly fill nr_chips in gen_nand 
registration and therefore depended on gen_nand bug fixed by by commit
81cbb0b1 ("mtd: gen_nand: fix support for
multiple chips")
Signed-off-by: NMarek Vasut <marek.vasut@gmail.com>
Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>