Kenny Root 565f9f216a Update Wifi to use new keystore function
The old wpa_supplicant.conf format used a special URI prefix
"keystore://" for the private_key value to indicate when to load things
from keystore.

The new format uses an OpenSSL ENGINE to perform operations with the
private key, so we don't need the special URI prefix. This changes
enables that usage and also supports migrating the old style
configuration to the new style.

Change-Id: Ibdf2322743eaa129bd2aa5e874f197b573714b57
2012-03-21 14:34:36 -07:00
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