Follow up r35112.
Follow up r35112.

* subversion/tests/libsvn_subr/auth-test.c
  (test_platform_specific_auth_providers): Pass required parameters for prompt
   baton, prompt function and command line option for keychain services and
   windows, since they are added in r35112 which broke the build in these
   platforms.

Found by: markphip

jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion