rv/dot2c: Make automaton definition static

Monitor's automata definition is only used locally, so make dot2c generate
a static definition.

Link: https://lore.kernel.org/all/202208210332.gtHXje45-lkp@intel.com
Link: https://lore.kernel.org/all/202208210358.6HH3OrVs-lkp@intel.com
Link: https://lkml.kernel.org/r/ffbb92010f643307766c9307fd42f416e5b85fa0.1661266564.git.bristot@kernel.org

Cc: Steven Rostedt <rostedt@goodmis.org>
Fixes: e3c9fc78 ("tools/rv: Add dot2c")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Daniel Bristot de Oliveira <bristot@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>

tools/verification/dot2/dot2c.py

@@ -111,7 +111,7 @@ class Dot2c(Automata):
 
     def format_aut_init_header(self):
         buff = []
-        buff.append("struct %s %s = {" % (self.struct_automaton_def, self.var_automaton_def))
+        buff.append("static struct %s %s = {" % (self.struct_automaton_def, self.var_automaton_def))
         return buff
 
     def __get_string_vector_per_line_content(self, buff):