fix windows build (FSBUILD-245)

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@16695 d0543943-73ff-0310-b7d9-9358b9ac24b2

src/include/private/switch_core_pvt.h

@@ -217,7 +217,7 @@ struct switch_runtime {
 	uint32_t debug_level;
 	uint32_t runlevel;
 	uint32_t tipping_point;
-	uint32_t timer_affinity;
+	int32_t timer_affinity;
 };
 
 extern struct switch_runtime runtime;