net/netvsc: increase VSP response timeout to 60 seconds

[ upstream commit d56475174855b1454cf004025b54d68e4a47f465 ]

The current timeout is set to 5 seconds. In Azure, tests show that it
may take up to 15 seconds for VSP to respond on busy nodes. The VSP
schedules unbounded work to process VSC request, there is no upper limit
on how long it takes to send response back to VSC.

In the NETVSC kernel mode driver, it waits forever for VSP response.
While in DPDK we can't wait forever, setting the timeout to 60 seconds.

Signed-off-by: Long Li <longli@microsoft.com>

drivers/net/netvsc/hn_rndis.c

@@ -35,7 +35,7 @@
 #include "hn_rndis.h"
 #include "ndis.h"
 
-#define RNDIS_TIMEOUT_SEC 5
+#define RNDIS_TIMEOUT_SEC 60
 #define RNDIS_DELAY_MS    10
 
 #define HN_RNDIS_XFER_SIZE		0x4000