keystore: Check for unlock, not for specific state

Most callers only care if the keystore is unlocked for use and not
whether it's in a specific state. Change this now so we can change the
states later.

Change-Id: I2de87c84fd16b33ee9e3eca3843a8260e1f5af87
1 file changed
tree: d0bf91f87fb78af06bda94d8da95f982517c20da
  1. keystore/
  2. keystore-engine/
  3. softkeymaster/