libpicofe, new version for triple buffering with sdl

diff --git a/platform/libpicofe b/platform/libpicofe
index 811cef4..b0dc47e 160000 (submodule)
--- a/platform/libpicofe
+++ b/platform/libpicofe
@@ -1 +1 @@
-Subproject commit 811cef4d9f3772d0bbf6c1f0434e5860c9550abc
+Subproject commit b0dc47eceaea9f1c77ee0f4bc0ba5b3fc9af383c