Add experimental scripts for disabling jit, and resetting device perf/test state

Bug: 355042464
Test: manually ran scripts

As a follow up, can provide gradle wrappers... though they're super
slow, and these are semi-internal anyway ¯\_(ツ)_/¯

Change-Id: Ia86b1a81e02569caaa2428b946e7cf62b04f0207
2 files changed