* put the cld instructions behind {$ifdef FPC_ENABLED_CLD} in i386/strings*.inc
* strupper and strlower were missing a cld, so it was added to them as well.



git-svn-id: http://svn.freepascal.org/svn/fpc/trunk@25591 3ad0048d-3df7-0310-abae-a5850022a9f2