Remove the SmbusEnable parameter from all Cannon Lake mainboards.
Instead this will be determined by the enable state of the SMBUS
PCI device.
Change-Id: I7ece6768da4c517747af12a07012583575816ae1
Signed-off-by: Duncan Laurie <dlaurie@google.com>
Reviewed-on: https://review.coreboot.org/29551
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>