Zero-initialize HIDL structs before passing

Test: make cts -j123 && cts-tradefed run cts-dev -m \
CtsMediaTestCases --compatibility:module-arg \
CtsMediaTestCases:include-annotation:\
android.platform.test.annotations.RequiresDevice

Bug: 131267328
Bug: 131356202
Change-Id: Ie91b7946f8f4406fd06e9cb4ad883b3a2704f366
Merged-In: I2f696aa85143f74f753fbb0320dce5aee88846c4
(cherry picked from commit cad25f33)