ibmvnic: fix kernel build warning

drivers/net/ethernet/ibm/ibmvnic.c: In function ‘adapter_state_to_string’:
drivers/net/ethernet/ibm/ibmvnic.c:855:2: warning: enumeration value ‘VNIC_DOWN’ not handled in switch [-Wswitch]
  855 |  switch (state) {
      |  ^~~~~~
drivers/net/ethernet/ibm/ibmvnic.c: In function ‘reset_reason_to_string’:
drivers/net/ethernet/ibm/ibmvnic.c:1958:2: warning: enumeration value ‘VNIC_RESET_PASSIVE_INIT’ not handled in switch [-Wswitch]
 1958 |  switch (reason) {
      |  ^~~~~~

Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Lijun Pan <lijunp213@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/ibm/ibmvnic.c

@@ -869,6 +869,8 @@ static const char *adapter_state_to_string(enum vnic_state state)
 		return "REMOVING";
 	case VNIC_REMOVED:
 		return "REMOVED";
+	case VNIC_DOWN:
+		return "DOWN";
 	}
 	return "UNKNOWN";
 }
@@ -1968,6 +1970,8 @@ static const char *reset_reason_to_string(enum ibmvnic_reset_reason reason)
 		return "TIMEOUT";
 	case VNIC_RESET_CHANGE_PARAM:
 		return "CHANGE_PARAM";
+	case VNIC_RESET_PASSIVE_INIT:
+		return "PASSIVE_INIT";
 	}
 	return "UNKNOWN";
 }