Don't deny visibility of ICLA group to its members

We are making this and other CLA enforcement groups public, since
they are not sensitive information (lists of committers are already
public and we used to keep these tracked in a wiki article before
enforcement within Gerrit), and since there is value in being able
to query this status in a read-only manner to aid in building
contributor analyses.

Change-Id: I459a066612fe014790086ac04cbeb5eebd6e062d
Merge "Don't deny visibility of ICLA group to its members"