iw_cxgb4: set the default MPA version to 2

This enables ORD/IRD negotiation and its about time to enable it by
default

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>

drivers/infiniband/hw/cxgb4/cm.c

@@ -115,11 +115,11 @@ module_param(ep_timeout_secs, int, 0644);
 MODULE_PARM_DESC(ep_timeout_secs, "CM Endpoint operation timeout "
 				   "in seconds (default=60)");
 
-static int mpa_rev = 1;
+static int mpa_rev = 2;
 module_param(mpa_rev, int, 0644);
 MODULE_PARM_DESC(mpa_rev, "MPA Revision, 0 supports amso1100, "
 		"1 is RFC0544 spec compliant, 2 is IETF MPA Peer Connect Draft"
-		" compliant (default=1)");
+		" compliant (default=2)");
 
 static int markers_enabled;
 module_param(markers_enabled, int, 0644);