When gathering our dependencies, work around an issue with libbrotli's
install name similar to what we do with libssh.
Bug: 15730
Change-Id: I571746848e3343d81c286be66f6fe6510c698d6f
Reviewed-on: https://code.wireshark.org/review/32990
Reviewed-by: Gerald Combs <gerald@wireshark.org>