Apply the 1-line revert from upstream that was the sole fix in 4.14.47,
4.9.105, and 4.4.135. Here we cherry-pick the patch until the corresponding
linux-libre versions are released.
* gnu/packages/linux.scm (linux-libre-4.14, linux-libre-4.9)
(linux-libre-arm-generic-4.14, linux-libre-arm-omap2plus-4.14)
(linux-libre-4.4): Add the patch.