SI-7258 Don't assume order of reflection values in t6223

test/files/run/t6223's check file expects a specific
ordering of the reflected values. The ordering is not
guaranteed by the runtime/reflection API and can change.

Therefore, sort the values before comparing them.
Merge pull request #2261 from soc/SI-7258

SI-7258 Don't assume order of reflection values in t6223