Zero-initialize HIDL structs before passing

Test: cts-tradefed run cts-dev --module CtsMediaTestCases --compatibility:module-arg CtsMediaTestCases:include-annotation:android.platform.test.annotations.RequiresDevice
(only existing failures/flakes)
Bug: 131267328
Bug: 131356202
Change-Id: I91e6e0c692d470f4d3a713068545cedf5ae925a7
Merged-In: I91e6e0c692d470f4d3a713068545cedf5ae925a7

(cherry picked from commit c4a5f5ec)