contrib: integrate RPM spec

Remove OpenSUSE bug report link, set version to 0.0.0, make it build with CentOS 8 etc.

Related: OS#4550
Change-Id: If771c1298c84868a9ab0b0aba8d26325c3d810e8
diff --git a/contrib/libsmpp34.spec b/contrib/libsmpp34.spec
index a6dd384..6b5cf5f 100644
--- a/contrib/libsmpp34.spec
+++ b/contrib/libsmpp34.spec
@@ -13,12 +13,9 @@
 # license that conforms to the Open Source Definition (Version 1.9)
 # published by the Open Source Initiative.
 
-# Please submit bugfixes or comments via http://bugs.opensuse.org/
-#
-
 %define sover 1
 Name:           libsmpp34
-Version:        1.14.0.1
+Version:        0.0.0
 Release:        0
 Summary:        PDU SMPP packaging and unpackaging tool
 License:        GPL-2.0-or-later AND LGPL-2.1-or-later