configs/arm_foundationv8: add eth0 to be configured by dhcp at boot
The "board/arm/foundation-v8/readme.txt" board documentation file [1]
recommends to start the Foundation_Platform emulator with a nat
network, but the corresponding defconfig does include the dhcp
network configuration for the network interface.
This commit adds the "eth0" interface to be configured by DHCP
at boot, in order to have a working network connectivity.
[1] https://gitlab.com/buildroot.org/buildroot/-/blob/2025.08/board/arm/foundation-v8/readme.txt#L39
Cc: Vincent Stehlé <vincent.stehle@laposte.net>
Signed-off-by: Julien Olivain <ju.o@free.fr>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Julien Olivain