soc/amd/cezanne: Factor out common GPP clk req code

Factor out the `gpp_dxio_update_clk_req_config` function as it will be
useful for other AMD SoCs.

BUG=b:250009974
TEST=Ran on nipperkin device, verified clk req settings match enabled
devices

Change-Id: I9a4c72d8e980993c76a1b128f17b65b0db972a03
Signed-off-by: Robert Zieba <robertzieba@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/68138
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>

0 files changed, 0 insertions, 0 deletions