Run scripted_beacon_test in one invocation

Test: cd $ANDROID_BUILD_TOP/vendor_libs/test_vendor_lib
         . ./scripts/scripted_beacon_test/run_test.sh
Tag: #gd-refactor
Bug: 154491371
Bug: 158019041
Change-Id: I84630e6f07923fd56aef9d69073caf00ef92d2fb