AML: update experiment id logic

Update the experiment id logic for binary push and train info to reflect
the new design.

Bug: 131267440
Test: gts tests added in topic
Test: gts-tradefed run gts-dev --module GtsStatsdHostTestCases
Change-Id: I09ff331c9d4b91c2e13a51b832c33d11b34ec0d7