weston: Properly namespace modules entrypoint

Signed-off-by: Quentin Glidic <sardemff7+git@sardemff7.net>
Reviewed-by: Daniel Stone <daniels@collabora.com>
diff --git a/compositor/cms-static.c b/compositor/cms-static.c
index a6bbfd4..e24501b 100644
--- a/compositor/cms-static.c
+++ b/compositor/cms-static.c
@@ -91,8 +91,8 @@
 
 
 WL_EXPORT int
-module_init(struct weston_compositor *ec,
-	    int *argc, char *argv[])
+wet_module_init(struct weston_compositor *ec,
+		int *argc, char *argv[])
 {
 	struct cms_static *cms;
 	struct weston_output *output;