omap: emif: Set initial DDR PHY config first

Commit "OMAP5: emif/ddr: Change emif settings as required for ES1.0 silicon"
(f4010734)
changed sequence to set final DDR PHY config register value at the beginning.
Looks like it was made by mistake and should be reverted.

Signed-off-by: Taras Kondratiuk <taras@ti.com>