libbinder: integration test for stability

Due to the number of backends involved and amount of code
passing stability around, as well as prebuilts being used
and multiple build systems being introduced, validate
the stability of binder objects end to end.

Bug: 385355208
Test: atest binderStabilityTest
Change-Id: I25fb93b85740e8380a333cd2f05afc1a3c35ec5b