tf-psa-crypto: update reference

Signed-off-by: Valerio Setti <valerio.setti@nordicsemi.no>
diff --git a/tf-psa-crypto b/tf-psa-crypto
index f936d86..5ab6c9c 160000
--- a/tf-psa-crypto
+++ b/tf-psa-crypto
@@ -1 +1 @@
-Subproject commit f936d86b2587eb4a961cac5b3b95b949ee056ee6
+Subproject commit 5ab6c9c8d6fae90fa46f51fbc7d5d1327a041388