[FS#675] Packages and Packages.gz have different content, cause opkg update fail when configured with src/gz

[LEDE Bugs]

The following task is now closed:

FS#675 - Packages and Packages.gz have different content, cause opkg update fail when configured with src/gz
User who did this - Jo-Philipp Wich (jow-)

Reason for closing: Not a bug
More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=675