am 0ebf13db: Rename keymaster tag types to clarify that integers are unsigned.

* commit '0ebf13dbf975028735a8afc42e39c6ea47cec704':
  Rename keymaster tag types to clarify that integers are unsigned.
tree: c80aee34277ca884cd26aff93a50cc00ad4e140c
  1. keystore/
  2. keystore-engine/
  3. softkeymaster/