ARM: OMAP2+: nand: reorganize gpmc timing values

This patch removes omap2_nand_gpmc_retime() which was used to quirk
some timing values before gpmc_cs_set_timings(). Due to recent changes,
gpmc_cs_set_timings() has evolved so that there is no more need for a
retime function.

To keep the gpmc configuration consistent for legacy board files, this
patch also adds oe_on and we_on to nand_default_timings[] as they
would be by the retime function.

Signed-off-by: Christoph Fritz <chf.fritz@googlemail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
diff --git a/arch/arm/mach-omap2/board-flash.c b/arch/arm/mach-omap2/board-flash.c
index c33adea..fc20a61 100644
--- a/arch/arm/mach-omap2/board-flash.c
+++ b/arch/arm/mach-omap2/board-flash.c
@@ -112,6 +112,9 @@
 		.cs_rd_off = 36,
 		.cs_wr_off = 36,
 
+		.we_on = 6,
+		.oe_on = 6,
+
 		.adv_on = 6,
 		.adv_rd_off = 24,
 		.adv_wr_off = 36,