* subversion/include/svn_xml.h: Include svn_private_config.h so that   when SVN_HAVE_OLD_EXPAT is defined its definition is visible before   it is used.
* subversion/include/svn_xml.h: Include svn_private_config.h so that
  when SVN_HAVE_OLD_EXPAT is defined its definition is visible before
  it is used.

Patch by: Momchil Velikov <velco@fadata.bg>

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