717138c83c
Commit 759a08633e ("package/mbpfan: fix build on musl / uclibc-ng") added a
patch for musl / uclibc-ng, but the upstream patch did not correctly apply
to the 2.4.0 release, breaking the build.
Fix that. In the mean time the patch has been applied upstream, so add a
reference to the upstream commit.
Fixes:
https://autobuild.buildroot.net/results/785be6231c1edc4e5461ce083a3d65fd27fc5843/
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>