net: agere: use true,false for bool variable

Fix the following coccicheck warning:

drivers/net/ethernet/agere/et131x.c:717:3-22: WARNING: Assignment of
0/1 to bool variable
drivers/net/ethernet/agere/et131x.c:721:1-20: WARNING: Assignment of
0/1 to bool variable
Signed-off-by: Jason Yan <yanaijie@huawei.com>
Acked-by: Mark Einon <mark.einon@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/agere/et131x.c

@@ -714,11 +714,11 @@ static int et131x_init_eeprom(struct et131x_adapter *adapter)
 			 * gather additional information that normally would
 			 * come from the eeprom, like MAC Address
 			 */
-			adapter->has_eeprom = 0;
+			adapter->has_eeprom = false;
 			return -EIO;
 		}
 	}
-	adapter->has_eeprom = 1;
+	adapter->has_eeprom = true;
 
 	/* Read the EEPROM for information regarding LED behavior. Refer to
 	 * et131x_xcvr_init() for its use.