nimble/transport/nrf53: Move RX from interrupt to task

This fixes monitor usage.

nimble/transport/nrf5340/src/nrf5340_ble_hci.c

@@ -36,6 +36,20 @@
 
 static struct hci_ipc_sm g_hci_ipc_sm;
 
+static void
+rx_func(void *arg)
+{
+ uint8_t *buf;
+ int len;
+
+ len = ipc_nrf5340_available_buf(IPC_RX_CHANNEL, (void **)&buf);
+ while (len > 0) {
+ len = hci_ipc_rx(&g_hci_ipc_sm, buf, len);
+ ipc_nrf5340_consume(IPC_RX_CHANNEL, len);
+ len = ipc_nrf5340_available_buf(IPC_RX_CHANNEL, (void **)&buf);
+ }
+}
+
 static int
 nrf5340_ble_hci_acl_tx(struct os_mbuf *om)
 {
@@ -95,22 +109,16 @@ nrf5340_ble_hci_iso_tx(struct os_mbuf *om)
 static void
 nrf5340_ble_hci_trans_rx(int channel, void *user_data)
 {
- uint8_t *buf;
- int len;
-
- len = ipc_nrf5340_available_buf(channel, (void **)&buf);
- while (len > 0) {
- len = hci_ipc_rx(&g_hci_ipc_sm, buf, len);
- ipc_nrf5340_consume(channel, len);
- len = ipc_nrf5340_available_buf(channel, (void **)&buf);
- }
+ assert(channel == IPC_RX_CHANNEL);
+ ble_transport_rx();
 }
 
 static void
 nrf5340_ble_hci_init(void)
 {
  SYSINIT_ASSERT_ACTIVE();
 
+ ble_transport_rx_register(rx_func, NULL);
  ipc_nrf5340_recv(IPC_RX_CHANNEL, nrf5340_ble_hci_trans_rx, NULL);
 }