Enable openSUSE to work in Python 3.x environments

Add packages required to run devstack with USE_PYTHON3=True.

Change-Id: Iee43c9335bd82c10cfaeffb02d1d99290c34bb83
diff --git a/inc/python b/inc/python
index a4819c2..2443c4d 100644
--- a/inc/python
+++ b/inc/python
@@ -553,6 +553,8 @@
 function install_python3 {
     if is_ubuntu; then
         apt_get install python${PYTHON3_VERSION} python${PYTHON3_VERSION}-dev
+    elif is_suse; then
+        install_package python3-devel python3-dbm
     fi
 }