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

.gitignore

@@ -20,5 +20,6 @@ tags
 host/simtrace2-list
 host/simtrace2-remsim
 host/simtrace2-remsim-usb2udp
+host/contrib/simtrace2.spec
 usb_strings_generated.h
 firmware/usbstring/usbstring

host/configure.ac

@@ -100,4 +100,5 @@ AC_OUTPUT(
 	src/Makefile
 	lib/Makefile
 	contrib/Makefile
+	contrib/simtrace2.spec
 	Makefile)

host/contrib/simtrace2.spec.in

@@ -12,11 +12,8 @@
 # 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/
-#
-
 Name:           simtrace2
-Version:        0.7.0.57
+Version:        @VERSION@
 Release:        0
 Summary:        Osmocom SIMtrace host utility
 License:        GPL-2.0-or-later