[LEDE-DEV] lantiq: reduced throughput with SMP disabled

[James Finnie]

> Please test the latest version of my staging tree at
> https://git.lede-project.org/?p=lede/nbd/staging.git;a=summary

I built an image with your r1251 from staging, it indeed has the
performance increase expected for SMP.  I can't test the wifi ath9k
changes until this evening, though I understand (not my own testing)
that these ethernet fixes for SMP with multiple NICs still cause some
issues (though not as severe as before).