Not all ports have retimers. Add a property to denote that a particular
port has a retimer (instead of assuming that all ports have retimers).
BUG=b:263964979
TEST=Verified on guybrush; SSDT shows retimer-switch on port1 when
device tree is updated accordingly.
Change-Id: I754323236d2912777b63cede0fce2ccf7882cfea
Signed-off-by: Prashant Malani <pmalani@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/71663
Reviewed-by: Robert Zieba <robertzieba@google.com>
Reviewed-by: Caveh Jalali <caveh@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>