drivers/net/inca-ip_sw.c: Fix GCC 4.6 build warning

Fix:
inca-ip_sw.c: In function 'inca_switch_init':
inca-ip_sw.c:210:6: warning: variable 'v' set but not used
[-Wunused-but-set-variable]
Signed-off-by: NWolfgang Denk <wd@denx.de>

drivers/net/inca-ip_sw.c

@@ -291,9 +291,7 @@ static int inca_switch_init(struct eth_device *dev, bd_t * bis)
 	/* Initialize RxDMA.
 	 */
 	DMA_READ_REG(INCA_IP_DMA_DMA_RXISR, v);
-#if 0
-	printf("RX status = 0x%08X\n", v);
-#endif
+	debug("RX status = 0x%08X\n", v);
 
 	/* Writing to the FRDA of CHANNEL.
 	 */
@@ -306,9 +304,7 @@ static int inca_switch_init(struct eth_device *dev, bd_t * bis)
 	/* Initialize TxDMA.
 	 */
 	DMA_READ_REG(INCA_IP_DMA_DMA_TXISR, v);
-#if 0
-	printf("TX status = 0x%08X\n", v);
-#endif
+	debug("TX status = 0x%08X\n", v);
 
 	/* Writing to the FRDA of CHANNEL.
 	 */