nb/intel/ivybridge: Improve CAS freq selection

The previous code seemed weird and tried to check if its selected
value is supported three times.

This also lower the clock if a selected frequency does not result in a
supported CAS number.

Change-Id: I1df20a0a723dc515686a766ad1b0567d815f6e89
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/19717
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>

0 files changed, 0 insertions, 0 deletions