igb: Cleanups to fix missing break in switch statements

This patch fixes WARNING:MISSING_BREAK found with checkpatch check.

Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
diff --git a/drivers/net/ethernet/intel/igb/e1000_i210.c b/drivers/net/ethernet/intel/igb/e1000_i210.c
index 71a2a17..2231598 100644
--- a/drivers/net/ethernet/intel/igb/e1000_i210.c
+++ b/drivers/net/ethernet/intel/igb/e1000_i210.c
@@ -432,6 +432,7 @@
 			*data = ID_LED_RESERVED_FFFF;
 			ret_val = E1000_SUCCESS;
 		}
+		break;
 	case NVM_SUB_DEV_ID:
 		*data = hw->subsystem_device_id;
 		break;