Now that device aliases can be used in the devicetree, the hacky function
'soc_get_pmc_mux_device' can be removed and replaced with pointers to the
devices the function was supposed to return (1 for each port).
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Change-Id: Ie00834c79bd5304998adaccb388ae74a108192b1
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45747
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>