drivers/net/r8168: Demote MAC lookup printk from error to warn

Some older devices use the vpd key 'ethernet_mac' vs 'ethernet_mac0'
for the first/only LAN NIC, so don't treat the key lookup as an error.
If no MAC is able to be found, another error will be printed later
in the driver init.

TEST=build/boot google/fizz, dump cbmem log, verify 'ethernet_mac0'
lookup failure printk output at warning level.

Change-Id: If5226f4686a819a7020fd14f130181420ee1462b
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/72475
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>

0 files changed, 0 insertions, 0 deletions