**Reason for PR**
These boards are well suited to being used as a router/AP doing traffic filtering or shaping etc.
The modules I've added make it possible to use any traffic scheduling features provided by the kernel.
**Kernel has been tested with this config**
I have built the kernel with this config and tested it on the NanoPi Neo 2 with success.
`Linux nanopineo2 4.19.13-sunxi64 #5.71 SMP Tue Jan 15 15:04:02 UTC 2019 aarch64 aarch64 aarch64 GNU/Linux`
**Almost zero memory usage increase**
I only changed a few options (as necessary) to Y, the rest are M (module).
**Please note**
I DID have to edit the kernel config by hand because I tried adding all traffic scheduling options in the kernel config menu, but it didn't provide the necessary changes to enable traffic control kernel options. Later when I checked /boot/config-4.19.13-sunxi64 all the traffic control options were still missing/disabled. AND also a lot of options needed did not exist in the original file.
So I edited the default file, exactly as it appears in this pull request.
**Source of missing options**
The options added can be found in https://github.com/torvalds/linux/blob/master/net/sched/Makefile and a few were listed here https://serverfault.com/questions/536464/what-kernel-module-to-compile-for-getting-qos-service-on-linux
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