CBLT-174:  also set param SYNCGATE_VERSION in mobile_functional_tests_ios_master, _100

Change-Id: Icd5cfbdc700edd01ede2b64ca43d233bf0503a6b
Reviewed-on: http://review.couchbase.org/35638
Reviewed-by: Philip Labee <philip@couchbase.com>
Tested-by: Philip Labee <philip@couchbase.com>