[automerger skipped] clearkey hidl: parsePssh securely am: 69279d9512 -s ours

am skip reason: Change-Id I480ee99778f8c774cb5b857b25c32d926270092d with SHA-1 230f58c028 is in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/av/+/11712803

Change-Id: If209468341a86b99fd72638f6a0538af1a782127