There's a merged pull request on the void-packages repository

openjdk{9,10,12-16}-bootstrap: disable on armv5 and armv6
https://github.com/void-linux/void-packages/pull/36791

Description:
Openjdk will compile for armv5* and armv6*, but it is not supported at runtime, at least in the configuration we ship.

See [here](https://forums.raspberrypi.com/viewtopic.php?t=232680), [here](https://forums.raspberrypi.com/viewtopic.php?t=323376), and [here](https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=255662) for evidence of the incompatibility.

This changes nothing for void's builds because these packages are nocross, but if someone wished to build it for arm natively, this will stop them.

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