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: I8595642bc07bf3044720942a0f1802448920cb50
diff --git a/host/configure.ac b/host/configure.ac
index 0f91cf2..bcdda08 100644
--- a/host/configure.ac
+++ b/host/configure.ac
@@ -100,4 +100,5 @@
 	src/Makefile
 	lib/Makefile
 	contrib/Makefile
+	contrib/simtrace2.spec
 	Makefile)