m480_eth: fix alignment

Previous commit was wrong (github does not show tabs properly)

Author: 0xc0170

features/netsocket/emac-drivers/TARGET_NUVOTON_EMAC/TARGET_M480/m480_eth.c

@@ -79,7 +79,7 @@ static int reset_phy(void)
 
     delayCnt = 2000;
     while(delayCnt > 0) {
-	    delayCnt--;
+        delayCnt--;
         if((mdio_read(CONFIG_PHY_ADDR, MII_BMCR) & BMCR_RESET) == 0)
             break;
 
@@ -101,7 +101,7 @@ static int reset_phy(void)
 
     delayCnt = 200000;
     while(delayCnt > 0) {
-	    delayCnt--;
+        delayCnt--;
         if((mdio_read(CONFIG_PHY_ADDR, MII_BMSR) & (BMSR_ANEGCOMPLETE | BMSR_LSTATUS))
                 == (BMSR_ANEGCOMPLETE | BMSR_LSTATUS))
             break;