net: axi_emac: Fix parentheses around operand !

Fix these compilation warning by proper grouping:
In function 'axi_dma_init': drivers/net/xilinx_axi_emac.c:391:7:
warning: suggest parentheses around operand of '!' or change '&' to '&&'
or '!' to '~' [-Wparentheses]
    if (!(in_be32(&priv->dmatx->control) |
        ^
In function 'axiemac_send': drivers/net/xilinx_axi_emac.c:501:21:
warning: suggest parentheses around operand of '!' or change '&' to '&&'
or '!' to '~' [-Wparentheses]
  while (timeout && (!in_be32(&priv->dmatx->status) &

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>

drivers/net/xilinx_axi_emac.c

@@ -388,9 +388,9 @@ static void axi_dma_init(struct eth_device *dev)
 	while (timeout--) {
 		/* Check transmit/receive channel */
 		/* Reset is done when the reset bit is low */
-		if (!(in_be32(&priv->dmatx->control) |
+		if (!((in_be32(&priv->dmatx->control) |
 				in_be32(&priv->dmarx->control))
-						& XAXIDMA_CR_RESET_MASK) {
+						& XAXIDMA_CR_RESET_MASK)) {
 			break;
 		}
 	}
@@ -498,8 +498,8 @@ static int axiemac_send(struct eth_device *dev, void *ptr, int len)
 	/* Wait for transmission to complete */
 	debug("axiemac: Waiting for tx to be done\n");
 	timeout = 200;
-	while (timeout && (!in_be32(&priv->dmatx->status) &
-			(XAXIDMA_IRQ_DELAY_MASK | XAXIDMA_IRQ_IOC_MASK))) {
+	while (timeout && (!(in_be32(&priv->dmatx->status) &
+			(XAXIDMA_IRQ_DELAY_MASK | XAXIDMA_IRQ_IOC_MASK)))) {
 		timeout--;
 		udelay(1);
 	}