mtd: msm_qpic_nand: Update ops for Nand read and write

The msm_nand_read and msm_nand_write variants are used to read/write
main data only i.e., no OOB data. The ops mode MTD_OPS_PLACE_OOB
is applicable for OOB data and is currently not supported in
software and so will cause failure for such requests.

Whereas when MTD_OPS_AUTO_OOB mode is used, the software would
automatically place the OOB at some pre-defined locaiton as per
our page layout.

So update the ops to MTD_OPS_AUTO_OOB for both read and write.

CRs-Fixed: 479634
Change-Id: Ief1e0ebf254816243058023c963cc80f8661e222
Signed-off-by: Pratibhasagar V <pratibha@codeaurora.org>