net: gem: Enable CTRL+C in wait_for_bit

Enable to break waiting loop at any time.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
diff --git a/drivers/net/zynq_gem.c b/drivers/net/zynq_gem.c
index 0ee909c..0a41281 100644
--- a/drivers/net/zynq_gem.c
+++ b/drivers/net/zynq_gem.c
@@ -14,6 +14,7 @@
 #include <net.h>
 #include <netdev.h>
 #include <config.h>
+#include <console.h>
 #include <malloc.h>
 #include <asm/io.h>
 #include <phy.h>
@@ -469,6 +470,11 @@
 		if (get_timer(start) > timeout)
 			break;
 
+		if (ctrlc()) {
+			puts("Abort\n");
+			return -EINTR;
+		}
+
 		udelay(1);
 	}