rtl: add cp856 to makefiles

git-svn-id: http://svn.freepascal.org/svn/fpc/trunk@26387 3ad0048d-3df7-0310-abae-a5850022a9f2
compiler: remove big codepage maps from the compiler executable - they will be loaded from -FM path when needed

git-svn-id: http://svn.freepascal.org/svn/fpc/trunk@26388 3ad0048d-3df7-0310-abae-a5850022a9f2