+ added support for far pointer constants in the assembly output

git-svn-id: http://svn.freepascal.org/svn/fpc/trunk@24854 3ad0048d-3df7-0310-abae-a5850022a9f2
* a_call_reg moved to a_call_reg_near

git-svn-id: http://svn.freepascal.org/svn/fpc/trunk@24855 3ad0048d-3df7-0310-abae-a5850022a9f2