Schematize Crypto state system property

Properties accessed across partitions are now schematized and will
become APIs to make explicit interfaces among partitions.

Bug: 117924132
Test: m -j
Change-Id: I968b342fdd0b8c30405611e53aca2479784636d7
Merged-In: Id36208fac5d4de062a51d541b64145560242f8fc