Disable xdmcp for i386 and x86_64 for ios

git-svn-id: https://svn.qindel.com/repos/main/projects/qindel/QVD/src/trunk@24173 4046b530-fbad-4e16-af16-ee11f0b55167
adjust compilation for xvnc

git-svn-id: https://svn.qindel.com/repos/main/projects/qindel/QVD/src/trunk@24174 4046b530-fbad-4e16-af16-ee11f0b55167
Fix xvnc arm64 and x86_64 builds

git-svn-id: https://svn.qindel.com/repos/main/projects/qindel/QVD/src/trunk@24178 4046b530-fbad-4e16-af16-ee11f0b55167