[FS#1072] AR71xx / TP-RE450: Can't build image with kernel 4.9.x

[LEDE Bugs]

The following task has a new comment added:

FS#1072 - AR71xx / TP-RE450: Can't build image with kernel 4.9.x
User who did this - Dirk Brenken (dibdot)

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Since yesterday (switch from default kernel 4.4 to 4.9) buildbots no longer generates snapshot images for re450 devices. In my buildroot environment I've removed kernel debugs & kallsyms and I'm back in business ...
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More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=1072#comment3667