[FS#423] Linksys WRT1900ACS USB led names are wrong

[LEDE Bugs]

The following task has a new comment added:

FS#423 - Linksys WRT1900ACS USB led names are wrong
User who did this - Mathias Kresin (mkresin)

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I will fix this together with FS#425.

howl, would you please try an image from https://www.kresin.me/files/mvebu/. The images are build from the 17.01 release branch and do include LuCI.

**Don't** preserve your config when upgrading! Please test both usb ports with USB 2.0 and USB 3.0 devices. Check if the correct LED is switched on and report back!

The LED names should match the label printed on the case as well.
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More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=423#comment1405