Make client/app ids objects in the binder API

Previously a null client/app id was translated into a blob with
length=0, data=NULL, but this was a bit janky and required null ids to
be set on key creation/import.

Change-Id: I27607a50f4dc5a898625b569f5293369f0039eba
3 files changed
tree: 5f7feb5981a863507a02ba40f0b495a656ec5730
  1. keystore/
  2. keystore-engine/
  3. softkeymaster/