Update pass-through opt-in EnabledSince to Baklava

Bug: 369605358
Test: atest CtsWindowManagerDeviceActivity:ActivityRecordInputSinkTests
CtsWindowManagerDeviceInput: WindowUntrustedTouchTest
CtsWindowManagerSdk35TestCases: ActivityRecordInputSinkTestsSdk35
CtsWindowManagerSdk35TestCases: WindowUntrustedTouchTestSdk35
Flag: com.android.window.flags.touch_pass_through_opt_in
Change-Id: Iccc190d527bff9301aaea77e41bc4e558a85b7c3