Merge "Allow getPsdsExtension to return nullptr" into stage-aosp-sc-ts-dev am: a5a3c1ece1 am: f95af27db6 am: 9257580660

Original change: https://googleplex-android-review.googlesource.com/c/platform/hardware/interfaces/+/15695413

Change-Id: I5850b00cc2b9413f8d586b70aa6dfd41a4ea55af