Refactor KeyStore Recovery Manager.

1) Parameters -> Params
2) Use byte[] for serivice parameters.
2) Move Exception into separate class.

Bug: 66499222
Test: adb shell am instrument -w -e package \
com.android.server.locksettings.recoverablekeystore \
com.android.frameworks.servicestests/android.support.test.runner.AndroidJUnitRunner

Change-Id: I1b9a8748830f7deb9eeb57693f5a818a49a7aabe
18 files changed