Merge tag 'i2c-mux/for-4.12-2' of https://github.com/peda-r/i2c-mux into i2c/for-4.12

Pull in trivial change from the i2c-mux subsubsystem:

"I thought Mauro would take this patch, but then he just added a tag. So,
here's a late incremental pull request for v4.12-rc1..."