nb/i945/raminit.c: Fix dll timings on 945GC

Values based on vendor bios.
TESTED on ga-945gcm-s2l with 667MHz ddr2.

Change-Id: I2160f0ac73776b20e2cc1ff5bf77ebe98d2c2672
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/17197
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Tested-by: build bot (Jenkins)
1 file changed