mtd: nand: Add a few more timings to nand_sdr_timings

mtd: nand: Add a few more timings to nand_sdr_timings

Add the tR_max, tBERS_max, tPROG_max and tCCS_min timings to the
nand_sdr_timings struct.
Assign default/safe values for the statically defined timings, and
extract them from the ONFI parameter table if the NAND is ONFI
compliant.

Signed-off-by: Boris Brezillon <[email protected]>
Tested-by: Marc Gonzalez <[email protected]>
[Linux commit: 204e7ecd47e26cc12d9e8e8a7e7a2eeb9573f0ba
 Fixup commit: 6d29231000bbe0fb9e4893a9c68151ffdd3b5469]
Signed-off-by: Masahiro Yamada <[email protected]>