Merge "Allow getPsdsExtension to return nullptr" into stage-aosp-sc-ts-dev am: a5a3c1ece1 am: f95af27db6 am: fa9800df23 am: cb76f1a5d5

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

Change-Id: I90ae64c34249f94e02d1315aecb2b2fb2a62431e