Integrate sepolicy patching with MagiskSU fixed

jni/daemon/post_fs_data.c

@@ -0,0 +1,15 @@
+/* post_fs_data.c - post-fs-data actions
+ */
+
+#include <unistd.h>
+
+#include "utils.h"
+#include "daemon.h"
+
+void post_fs_data(int client) {
+	// ack
+	write_int(client, 0);
+	// TODO: Do something
+	close(client);
+	unblock_boot_process();
+}