Update banana.

Signed-off-by: Florent Bruneau <florent.bruneau@polytechnique.org>

diff --git a/banana b/banana
index 212ada1..8575148 160000 (submodule)
--- a/banana
+++ b/banana
@@ -1 +1 @@
-Subproject commit 212ada1babbd46d48b44e47f24bb129370c24b6a
+Subproject commit 8575148f767c35d84122edf39f9a416010d9e532