* do not emit shl/shr with a const different than 1 on 8086

git-svn-id: http://svn.freepascal.org/svn/fpc/trunk@24382 3ad0048d-3df7-0310-abae-a5850022a9f2
- cleanup tcg8086.a_loadaddr_ref_cgpara from unused code left over from i386

git-svn-id: http://svn.freepascal.org/svn/fpc/trunk@24383 3ad0048d-3df7-0310-abae-a5850022a9f2
* got rid of push const also in tcg8086.a_loadaddr_ref_cgpara

git-svn-id: http://svn.freepascal.org/svn/fpc/trunk@24384 3ad0048d-3df7-0310-abae-a5850022a9f2