Throw InsecureUserException when LSKF is not set in recoverablekeystore.

Without fix RecoveryController.generateKey and importKey throw generic ServiceSpecificException.

Bug: 283534188
Test: atest com.android.server.locksettings.recoverablekeystore
Change-Id: I8604d3c771e37ca3322d3301037b7443d0a3928b
Merged-In: I8604d3c771e37ca3322d3301037b7443d0a3928b
(cherry picked from commit 26f7222eeb6eb6fab9e5ca7106b7eb6dd21c77b9)
3 files changed