KVM-test: Add execute permission to qemu-ifup script

qemu-ifup is a script for setting network bridge.
If no execute permission, always face this problem:

autotest/client/tests/kvm/scripts/qemu-ifup: could not launch network script
Could not initialize device 'tap

Signed-off-by: Amos Kong <akong@redhat.com>

git-svn-id: http://test.kernel.org/svn/autotest/trunk@3882 592f7852-d20e-0410-864c-8624ca9c26a4
1 file changed