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 7d60bf1..7d941e8 160000
--- a/tf-psa-crypto
+++ b/tf-psa-crypto
@@ -1 +1 @@
-Subproject commit 7d60bf1078578bfc809f1516c195c54cefdb510d
+Subproject commit 7d941e84a5b5c77f642186075ef45b3cc3214d57