Let caller handle NoSuchAlgorithmException.

This surfaces relevant NoSuchAlgorithmExceptions to the caller instead
of rethrowing as other exception types. Some setups need to be able to
distringuish issues due to their own misconfiguration
(required crypto algorithm mising -- NoSuchAlgorithmException) from
issues with the APK being signed or verified.

Bug: 27461702
Change-Id: I993f73edb29b2cd4cc485734a89a924ec357ef19