west: update hal_telink

- update ECDSA signature verification by replacing software
interfaces with Telink HW PKE module
- update hal_telink revision from
256bc47e2198b6ac39534a00898eaee9a38b17c5
to
pull/209/head

Signed-off-by: Laiyue Wang <laiyue.wang@telink-semi.com>

Author: Laiyue Wang

west.yml

@@ -260,7 +260,7 @@ manifest:
     - name: hal_telink
       remote: telink-semi
       repo-path: hal_telink
-      revision: 256bc47e2198b6ac39534a00898eaee9a38b17c5
+      revision: pull/209/head
       path: modules/hal/telink
       groups:
         - hal