boards: siemens: iot2050: Ignore network errors during bootstage tracking

We need to filter out NET_ETH_START errors because we have to enable
networking in order to propagate the MAC addresses to the DT while there
is no network driver for the prueth in U-Boot yet.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
1 file changed