weston: Make the shell entrypoint specific

This avoids loading a shell as a module, so we are sure to have only one
shell loaded at a time.

Signed-off-by: Quentin Glidic <sardemff7+git@sardemff7.net>
Reviewed-by: Daniel Stone <daniels@collabora.com>

ivi-shell/ivi-shell.c

@@ -492,8 +492,8 @@ shell_add_bindings(struct weston_compositor *compositor,
  * Initialization of ivi-shell.
  */
 WL_EXPORT int
-wet_module_init(struct weston_compositor *compositor,
-		int *argc, char *argv[])
+wet_shell_init(struct weston_compositor *compositor,
+	       int *argc, char *argv[])
 {
 	struct ivi_shell *shell;
 	struct ivi_shell_setting setting = { };