Tests: Avoid link failures w.r.t. libintl.

Tests: Avoid link failures w.r.t. libintl.

* modules/faccessat-tests (Makefile.am): Link test-faccessat against
$(LIBINTL).
* modules/fchdir-tests (Makefile.am): Link test-fchdir against
$(LIBINTL).
* modules/getcwd-lgpl-tests (Makefile.am): Link test-getcwd-lgpl
against $(LIBINTL).
* modules/getcwd-tests (Makefile.am): Link test-getcwd against
$(LIBINTL).
* modules/openat-tests (Makefile.am): Link test-fchmodat against
$(LIBINTL).
* modules/stat-tests (Makefile.am): Link test-stat against $(LIBINTL).