ixgbevf: clean up some inconsistent indenting

Eliminate the follow smatch warning:
drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c:2756
ixgbevf_alloc_q_vector() warn: inconsistent indenting
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>

drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c

@@ -2753,7 +2753,7 @@ static int ixgbevf_alloc_q_vector(struct ixgbevf_adapter *adapter, int v_idx,
 		ring->reg_idx = reg_idx;
 
 		/* assign ring to adapter */
-		 adapter->tx_ring[txr_idx] = ring;
+		adapter->tx_ring[txr_idx] = ring;
 
 		/* update count and index */
 		txr_count--;