soc/intel/meteorlake: Hook up SaGvFreq, SaGvGear upds

Hook the SaGvFreq, SaGvGear upds so that mainboard can change the
settings via devicetree. Meteor Lake supports 4 SaGv work points and it
can dynamically scale the work point based on memory bandwidth
utilization. Dynamic gearing technology allows the Memory Controller to
run at 1:1, 1:2 or 1:4 ratio of DRAM speed. The gear ratio is the ratio
of DRAM speed to Memory Controller Clock.

BUG=b:282164577
TEST=Verified the settings on google/rex using debug FSP logs.

Signed-off-by: Bora Guvendik <bora.guvendik@intel.com>
Change-Id: I37169880af4019675374594e90735b5d7d0873b8
Reviewed-on: https://review.coreboot.org/c/coreboot/+/75290
Reviewed-by: Subrata Banik <subratabanik@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

0 files changed, 0 insertions, 0 deletions