[FS#497] ipq806x: non-working USB 3.0 port on R7500 / Netgear X4 nighthawk

[LEDE Bugs]

The following task has a new comment added:

FS#497 - ipq806x: non-working USB 3.0 port on R7500 / Netgear X4 nighthawk
User who did this - dissent1 (dissent1)

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Try adding lines 116-134 from here https://git.lede-project.org/?p=source.git;a=blob;f=target/linux/ipq806x/files/arch/arm/boot/dts/qcom-ipq8064-r7500v2.dts;h=4edfbeb72db42f7a91eee00ab8ad10a97be90721;hb=HEAD

into r7500 Dts.
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More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=497#comment1719