linux-gen: pktio: ethtool: don't include linux/if.h
linux-gen: pktio: ethtool: don't include linux/if.h

net/if.h together with _USE_MISC (from _GNU_SOURCE) includes necessary
definitions, so no point in including platform-specific linux/if.h.

Signed-off-by: Dmitry Eremin-Solenikov <05e7612c354c8479a2d1e9b11fb63ce18664b3ca@linaro.org>
Signed-off-by: Maxim Uvarov <db4d16e02ae2d7493db430203537da8b2e34f290@linaro.org>

dkrot/odp,dkrot/odp,dkrot/odp,dkrot/odp