EFR32 : Updated Matter_support pointer to latest commit (#23583)

diff --git a/third_party/silabs/matter_support b/third_party/silabs/matter_support
index f033c50..b61a20b 160000
--- a/third_party/silabs/matter_support
+++ b/third_party/silabs/matter_support
@@ -1 +1 @@
-Subproject commit f033c5099804fae5003c70f5f6de21a5e39464f2
+Subproject commit b61a20b4e2de19172cf6af051d16a1a7d1c86db7