all: Update to point to files in new shared/ directory.

Signed-off-by: Damien George <damien@micropython.org>
diff --git a/ports/esp8266/modutime.c b/ports/esp8266/modutime.c
index bcfbf7b..1d4ecc0 100644
--- a/ports/esp8266/modutime.c
+++ b/ports/esp8266/modutime.c
@@ -32,7 +32,7 @@
 #include "py/runtime.h"
 #include "py/mphal.h"
 #include "py/smallint.h"
-#include "lib/timeutils/timeutils.h"
+#include "shared/timeutils/timeutils.h"
 #include "modmachine.h"
 #include "user_interface.h"
 #include "extmod/utime_mphal.h"