net: marvell: fix MVNETA_TX_IN_PRGRS bit number

According to Armada XP datasheet bit at 0 position is corresponding for
TxInProg indication.

Fixes: c5aff182 ("net: mvneta: driver for Marvell Armada 370/XP network unit")
Signed-off-by: NMaxim Kiselev <bigunclemax@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/ethernet/marvell/mvneta.c

@@ -105,7 +105,7 @@
 #define	MVNETA_VLAN_PRIO_TO_RXQ			 0x2440
 #define      MVNETA_VLAN_PRIO_RXQ_MAP(prio, rxq) ((rxq) << ((prio) * 3))
 #define MVNETA_PORT_STATUS                       0x2444
-#define      MVNETA_TX_IN_PRGRS                  BIT(1)
+#define      MVNETA_TX_IN_PRGRS                  BIT(0)
 #define      MVNETA_TX_FIFO_EMPTY                BIT(8)
 #define MVNETA_RX_MIN_FRAME_SIZE                 0x247c
 /* Only exists on Armada XP and Armada 370 */