Add visibity for androidx prebuilts.

Test: make
Change-Id: I9114ea285729d962366230d32f254619edd5ffa5
Merged-In: I9114ea285729d962366230d32f254619edd5ffa5
(cherry picked from commit 91a3cdb215a25b12fb9c2f2a3cde622a1504670a)
1 file changed