Testing value returned by subgroup logical operations

The CTS tests for the subgroup logical operations (such as `sub_group_non_uniform_reduce_logical_and`) appear to expect that a true result will have the value 1.

But the OpenCL Extension Specification (I'm looking at Version V3.0.12) states (section 38.7.1.3): "For these functions, a non-zero [...] return value is logically true".

Start by locating the CTS tests for subgroup logical operations, including sub_group_non_uniform_reduce_logical_and, and compare their assertions with section 38.7.1.3 of the OpenCL Extension Specification V3.0.12. Done means the tests accept every non-zero result as logically true rather than requiring the value 1.

Written by the indexing model from the issue text.