[nrf fromtree] manifest: Update hal_nordic with nrfx changes

Moving hash to include new radio symbols from hal_nordic/nrfx.

Signed-off-by: Karol Lasończyk <[email protected]>
(cherry picked from commit 45dd395)

Author: kl-cruz

west.yml

@@ -183,7 +183,7 @@ manifest:
       groups:
         - hal
     - name: hal_nordic
-      revision: d4030afcc0befef645eda11e82c0d7c0e1d604f1
+      revision: af7b21c4f875bea26689307daa8e52e9a8e8323c
       path: modules/hal/nordic
       groups:
         - hal