[FS#375] Bulidbots should have multilib support installed to prevent unnecessary breakage

[LEDE Bugs]

The following task has a new comment added:

FS#375 - Bulidbots should have multilib support installed to prevent unnecessary breakage
User who did this - Yousong Zhou (yousong)

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The issue extends to "prerequisites for buildbot hosts".  The issue also applies java-related packages: https://github.com/openwrt/packages/pull/3686
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More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=375#comment2628