fix module_init signature in module tests

surface-global-test and surface-test did not get updated to
the new module_init(...) signature when it changed in
a50e6e4c50.  Thus, they
failed to compile.  Simply running 'make check' shows the
problem. This patch fixes it.

fixes https://bugs.freedesktop.org/show_bug.cgi?id=64691

Signed-off-by: U. Artie Eoff <ullysses.a.eoff@intel.com>

tests/surface-global-test.c

@@ -67,8 +67,7 @@ surface_to_from_global(void *data)
 }
 
 WL_EXPORT int
-module_init(struct weston_compositor *compositor,
-	    int *argc, char *argv[], const char *config_file)
+module_init(struct weston_compositor *compositor, int *argc, char *argv[])
 {
 	struct wl_event_loop *loop;
 

tests/surface-test.c

@@ -50,8 +50,7 @@ surface_transform(void *data)
 }
 
 WL_EXPORT int
-module_init(struct weston_compositor *compositor,
-	    int *argc, char *argv[], const char *config_file)
+module_init(struct weston_compositor *compositor, int *argc, char *argv[])
 {
 	struct wl_event_loop *loop;