net/iavf/base: increase max VSI count for VFs

Change max VSI per VF from 3 to 4.

Signed-off-by: Paul M Stillwell Jr <paul.m.stillwell.jr@intel.com>
Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
Acked-by: Qiming Yang <qiming.yang@intel.com>

drivers/net/iavf/base/iavf_type.h

@@ -30,7 +30,7 @@
 #define IAVF_MAX_PF_VSI			64
 #define IAVF_MAX_PF_QP			128
 #define IAVF_MAX_VSI_QP			16
-#define IAVF_MAX_VF_VSI			3
+#define IAVF_MAX_VF_VSI			4
 #define IAVF_MAX_CHAINED_RX_BUFFERS	5
 
 /* something less than 1 minute */