[flang] Apply the check for the constraint `C1172` to more stmts

Apply the check for the constraint `C1172` to `unlock-stmt`,
`change-team-stmt`, `end-team-stmt`, and `critical-stmt`, which
all have `sync-stat-lists` and so `C1172` applies to them. Add
a test to check the `sync-stat-lists` for these 4 statements.

Reviewed By: PeteSteinfeld

Differential Revision: https://reviews.llvm.org/D150745