Merge "ISharedSecret: Add strongbox definition" into sc-dev am: e24eb35f81 am: 26f8d9982f

Original change: https://googleplex-android-review.googlesource.com/c/platform/hardware/interfaces/+/14664575

Change-Id: Ia9a6a4bdbc2db4c96869d80cd14587128dd670a3