init: call restorecon on /sys

Not all files on /sys are not getting labeled properly. Fix them.

Change-Id: I9dcff76354e7f50d41f1b6e702836cfbbc149278
diff --git a/init/util.h b/init/util.h
index 45905b6..6bca4e6 100644
--- a/init/util.h
+++ b/init/util.h
@@ -41,4 +41,5 @@
 void import_kernel_cmdline(int in_qemu, void (*import_kernel_nv)(char *name, int in_qemu));
 int make_dir(const char *path, mode_t mode);
 int restorecon(const char *pathname);
+int restorecon_recursive(const char *pathname);
 #endif