Default to PASSWORD_QUALITY_UNSPECIFIED

This changes methods in LockPatternUtils to default to PASSWORD_QUALITY_UNSPECIFIED
instead of PASSWORD_QUALITY_SOMETHING.  This was confusing device encryption tools on a
freshly installed device that has never had a PIN, pattern or password set up.

Change-Id: If9b62a71220ed7520b6730201e55e34e89c0357d
1 file changed