[FS#86] Can't generate Solidrun Clearfog A1 Pro image

[LEDE Bugs]

The following task has a new comment added:

FS#86 - Can't generate Solidrun Clearfog A1 Pro image
User who did this - Christophe Prevotaux (cp)

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the uboot comes from here https://github.com/SolidRun/u-boot-armada38x

But I am not sure it compiles at the moment with gcc5
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More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=86#comment210