Comment out the access to the enterprise fields of
WifiConfiguration class in AccessPointState class.
And will have a new patch for accessing the new WifiConfiguration.
1. Certificate related APIs were moved to CertTool. Therefore,
we have to migrate to CertTool instead.
2. Unlock the keystore if it is not unlocked yet(send the intent
out to credential storage) for EAP access points.
3. Add Password field for WPA_EAP and IEEE8021X(this is for
phase 2 auth.)
1. Remove the isEnterprise() filter in Scanresult.
2. This requires the new fields such as identity, eap, certificate/key
to support EAP authentication in Wifi Settings.
3. Add simple file-based keystore to select the cert/key from UI.
-- Updated from the comments.
-- Fix the bug for passing null pointer for adding spinner items.
