Default Kenwood rigs to VFOA and split=off

https://github.com/Hamlib/Hamlib/issues/745

rigs/kenwood/kenwood.c

@@ -954,6 +954,12 @@ int kenwood_open(RIG *rig)
             }
 
             rig->state.rigport.retry = retry_save;
+
+            // Default to 1st VFO and split off
+            if (rig->caps->set_vfo) {
+                rig_set_vfo(rig, vfo_fixup(rig, RIG_VFO_A, 0));
+            }
+
             RETURNFUNC(RIG_OK);
         }
 

rigs/kenwood/kenwood.h

@@ -28,7 +28,7 @@
 #include "token.h"
 #include "misc.h"
 
-#define BACKEND_VER "20210719"
+#define BACKEND_VER "20210804"
 
 #define EOM_KEN ';'
 #define EOM_TH '\r'