[MLIR][OpenMP] Fixed the missing inclusive clause in omp.wsloop and fix order clause

This patch adds the inclusive clause (which was missed in previous
reorganization - https://reviews.llvm.org/D110903) in omp.wsloop operation.
Added a test for validating it.

Also fixes the order clause, which was not accepting any values. It now accepts
"concurrent" as a value, as specified in the standard.

Reviewed By: kiranchandramohan, peixin, clementval

Differential Revision: https://reviews.llvm.org/D112198