net:xen-netback - Change 1 to true for bool type variable.

The variable separate_tx_rx_irq is bool type so assigning true
instead of 1.

Signed-off-by: Shailendra Verma <shailendra.capricorn@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/xen-netback/netback.c b/drivers/net/xen-netback/netback.c
index 4de46aa..792ada6 100644
--- a/drivers/net/xen-netback/netback.c
+++ b/drivers/net/xen-netback/netback.c
@@ -52,7 +52,7 @@
  * event channels are limited resource. Split event channels are
  * enabled by default.
  */
-bool separate_tx_rx_irq = 1;
+bool separate_tx_rx_irq = true;
 module_param(separate_tx_rx_irq, bool, 0644);
 
 /* The time that packets can stay on the guest Rx internal queue