[EFR32] Fix/matter support pointer update (#23631)

* EFR32 : Updated Matter_support pointer to latest commit

* EFR32 : Updated Matter_support pointer to latest commit
diff --git a/third_party/silabs/matter_support b/third_party/silabs/matter_support
index b61a20b..3b70797 160000
--- a/third_party/silabs/matter_support
+++ b/third_party/silabs/matter_support
@@ -1 +1 @@
-Subproject commit b61a20b4e2de19172cf6af051d16a1a7d1c86db7
+Subproject commit 3b70797dae4a24302f8320a38dc704bde3addf16