[FS#120] opkg fails with Out of memory on a device with 32 MB of RAM

[LEDE Bugs]

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FS#120 - opkg fails with Out of memory on a device with 32 MB of RAM
User who did this: cypa (cypa)
Priority: High -> Medium

More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=120