Support new allow_tenant_reuse parameter in tempest config

This adds support for setting the above-mentioned attribute, which
was added in tempest recently.

Change-Id: I14fe21f97d1c57f538254fa0420e9bc56115fc3b
diff --git a/tools/configure_tempest.sh b/tools/configure_tempest.sh
index 0da5597..2df0315 100755
--- a/tools/configure_tempest.sh
+++ b/tools/configure_tempest.sh
@@ -162,6 +162,7 @@
 COMPUTE_CATALOG_TYPE=compute
 COMPUTE_CREATE_IMAGE_ENABLED=True
 COMPUTE_ALLOW_TENANT_ISOLATION=True
+COMPUTE_ALLOW_TENANT_REUSE=True
 COMPUTE_RESIZE_AVAILABLE=False
 COMPUTE_CHANGE_PASSWORD_AVAILABLE=False  # not supported with QEMU...
 COMPUTE_LOG_LEVEL=ERROR
@@ -216,6 +217,7 @@
     s,%ALT_TENANT_NAME%,$ALT_TENANT_NAME,g;
     s,%COMPUTE_CATALOG_TYPE%,$COMPUTE_CATALOG_TYPE,g;
     s,%COMPUTE_ALLOW_TENANT_ISOLATION%,$COMPUTE_ALLOW_TENANT_ISOLATION,g;
+    s,%COMPUTE_ALLOW_TENANT_REUSE%,$COMPUTE_ALLOW_TENANT_REUSE,g;
     s,%COMPUTE_CREATE_IMAGE_ENABLED%,$COMPUTE_CREATE_IMAGE_ENABLED,g;
     s,%COMPUTE_RESIZE_AVAILABLE%,$COMPUTE_RESIZE_AVAILABLE,g;
     s,%COMPUTE_CHANGE_PASSWORD_AVAILABLE%,$COMPUTE_CHANGE_PASSWORD_AVAILABLE,g;