Adjust package installation for openSUSE

On SUSE family distros the squash-tools are simply part of the
main package called "squashfs", so install that one instead. Without
this change bindep on SUSE hosts fails with:

  ERROR: These requested packages were not installed:
  squashfs-tools

Also adjust install_test_deps.sh to install required packages
on an openSUSE host.

Change-Id: I61dcd5314e78dbb1fb31e723799374edd456da99

bindep.txt

@@ -1,5 +1,6 @@
 # This is a cross-platform list tracking distribution packages needed by tests;
 # see http://docs.openstack.org/infra/bindep/ for additional information.
-squashfs-tools
+squashfs-tools [!platform:suse]
+squashfs [platform:suse]
 zypper [!platform:redhat !platform:ubuntu-trusty]
 gnupg2 [!platform:redhat !platform:ubuntu-trusty]

tests/install_test_deps.sh

@@ -24,6 +24,15 @@ sudo apt-get install -y --force-yes \
         kpartx \
         util-linux \
         qemu-img || \
+    sudo zypper -n install \
+        bzip2 \
+        debootstrap \
+        docker \
+        kpartx \
+        util-linux \
+        python-pyliblzma \
+        yum-utils \
+        qemu-tools || \
     sudo emerge \
         app-arch/bzip2 \
         app-emulation/qemu \