Revert "Revert "emif: Added 466mhz timigs""

This reverts commit 6a687b58e2d80d0d8c87a0bb3c484a8473648288.

Conflicts:
	arch/arm/mach-omap2/include/mach/emif.h

Signed-off-by: dtrail <mnl.manz@gmail.com>
Revert "lpddr: Remove 466mhz define"

This reverts commit 085cb5eb6a27261d1b0757ee0cb6d0c51675ba11.

Conflicts:
	arch/arm/mach-omap2/lpddr2_elpida_data.c

Signed-off-by: dtrail <mnl.manz@gmail.com>