[FS#969] xtables-addons fails to compile

[LEDE Bugs]

The following task has a new comment added:

FS#969 - xtables-addons fails to compile
User who did this - Philip Prindeville (pprindeville)

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Andrey: can you please test the fix?

https://github.com/lede-project/source/commit/dca79bb73ea62ff5806d5a874710c88dcdfc99bb.patch

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More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=969#comment3280