pimgen to pick VPD Collection interface

This commit enables pimgen.py to pick
com.ibm.VPD.Collection interface.

Change-Id: I88134953588bffdca6edcbc7bdfcca6d60990f07
Signed-off-by: Priyanga Ramasamy <priyanga24@in.ibm.com>
diff --git a/pimgen.py b/pimgen.py
index 0b635bb..05c2e20 100755
--- a/pimgen.py
+++ b/pimgen.py
@@ -606,6 +606,7 @@
                 y.startswith("xyz")
                 or y.startswith("com/ibm/ipzvpd")
                 or y.startswith("com/ibm/Control/Host")
+                or y.startswith("com/ibm/VPD")
             ):
                 continue
             with open(os.path.join(targetdir, y)) as fd: