New review comment by Johnnynator on void-packages repository

https://github.com/void-linux/void-packages/pull/45745#discussion_r1339676040

Comment:
```suggestion
if [ "$XBPS_TARGET_WORDSIZE" == "32" ]; then
	broken="Minimum requirements state 64-bit for GPU renderer" ;;
fi
```

Checking `XBPS_TARGET_WORDSIZE` instead of listing all 32bit architectures is more sensible.