uic: zpc: UIC-3597: Remove zwave_controller_get_key_from_encapsulation dependency from zwave_api module

(cherry picked from commit 85a4731ae480e40b79ec0dda8123d815e0cf4e77)
Forwarded: #11
Signed-off-by: Philippe Coval <philippe.coval@silabs.com>

Author: silabs-aydogane

applications/zpc/components/zwave_api/src/zwapi_protocol_controller.c

@@ -850,7 +850,7 @@ sl_status_t zwapi_transfer_protocol_cc(
   uint8_t response_buffer[FRAME_LENGTH_MAX] = { 0 };
 
   zwapi_write_node_id(request_buffer, &index, srcNode);
-  request_buffer[index++] = zwave_controller_get_key_from_encapsulation(decryptionKey);
+  request_buffer[index++] = decryptionKey;
 
   if (payloadLength > ZWAVE_MAX_FRAME_SIZE)
   {

applications/zpc/components/zwave_command_handler/src/zwave_command_handler_callbacks.cpp

@@ -296,10 +296,15 @@ void zwave_command_handler_on_protocol_frame_received(
   message << "]";
   sl_log_debug(LOG_TAG, "%s", message.str().c_str());
 
-  // Dispatch and look at the status code
+  uint8_t decryption_key = zwave_controller_get_key_from_encapsulation(connection_info->encapsulation);
+
+ // Dispatch and look at the status code
   sl_status_t status
-      = zwapi_transfer_protocol_cc(connection_info->remote.node_id, connection_info->encapsulation, frame_length, frame_data);
-  
+    = zwapi_transfer_protocol_cc(connection_info->remote.node_id,
+                                 decryption_key,
+                                 frame_length,
+                                 frame_data);
+
   switch (status) {
     case SL_STATUS_OK:
       sl_log_debug(LOG_TAG,