RESTRICT AUTOMERGE: testEncryption for device without secure lock screen

Data Storage Encryption is optional for devices without a secure lock
screen. Devices with a secure lock screen MUST report
android.software.device_admin, so we exempt any devices that don't
report that from testEncryption.

Bug: 121294299
Change-Id: I2d5dae412737527aa582dc3d5eb2cca4348c1df2
1 file changed