meta-ide-support: Add native qemu support for meta-ide-support
[YOCTO #2761]
This patch fixed the issue that after "bitbake meta-ide-support" and try to start qemu and it will fail. This is due to the meta-ide-support lacking dependency for qemu native and ended up using qemu under /usr/bin. Fix the issue by adding dependency for qemu native in meta-ide-support and also add the path info in the environment-setup script.
