manifest: pull nrf_rpc initialization fix

Fix one missed scenario in which transport_initialized flag
may be false because of the thread running nrf_rpc_init()
being switched out by the scheduler before setting this flag.

Signed-off-by: Damian Krolik <[email protected]>

Author: Damian-Nordic

west.yml

@@ -144,7 +144,7 @@ manifest:
     - name: nrfxlib
       repo-path: sdk-nrfxlib
       path: nrfxlib
-      revision: 2251371286d4aeeb35cdd87531cc14162158b014
+      revision: 77461844f6812642c43b69e0ab448b830f03caec
     - name: trusted-firmware-m
       repo-path: sdk-trusted-firmware-m
       path: modules/tee/tf-m/trusted-firmware-m