Android N IOT Preview 2 (NIG40)
Rename mincrypt to constrainedcrypto

Increasing the clumsiness of the library name will hopefully
discourage further use. This change also adds a README file that
explains the current thinking regarding native crypto library usage
for the Android platform.

BUG: 27287913

Change-Id: I48d4aa4b928756403a59d3755a0caf34c6172b26
19 files changed