refactor --for BaseEncoderTest
Set constraint set 0 and 1 flags for non-scalable as well

This allows decoders to know that a baseline stream doesn't
contain any of the features that aren't in the constrained
baseline subset.

Set the flags based on what profile we target.
Merge pull request #1476 from mstorsjo/sps-constraints

Set constraint set 0 and 1 flags for non-scalable as well
Merge pull request #1469 from shihuade/APIUTV1.5.2

refactor --for BaseEncoderTest