Add a null check around the usage of the RFWU (Retimer Firmware
Update path) in the `usb4_retimer_execute_ec_cmd` function. This
ensures that any interaction with RFWU is only performed when the
path is valid, preventing potential null pointer dereferences.
This fixes are large amount of errors when `ec_retimer_fw_update_path`
isn't declared, such as comparisons like `If ((Local0 == Break))`.
Change-Id: I5a219345440f91332f680885b51e2cc09f14f7a7
Signed-off-by: Sean Rhodes <sean@starlabs.systems>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/84615
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: coreboot org <coreboot.org@gmail.com>
b7ab2e0d56