Fix Malachite SDR to return 0 freq when VFOB is requested -- rig does not have VFOB

https://github.com/Hamlib/Hamlib/issues/1070

rigs/kenwood/kenwood.c

@@ -1953,6 +1953,12 @@ int kenwood_get_freq(RIG *rig, vfo_t vfo, freq_t *freq)
         rig_debug(RIG_DEBUG_ERR, "%s: unsupported VFO %s\n", __func__, rig_strvfo(vfo));
         RETURNFUNC(-RIG_EINVAL);
     }
+    if (rig->caps->rig_model == RIG_MODEL_MALACHITE)
+    {
+        // Malachite does not have VFOB so we'll just return VFOA
+        *freq = 0;
+        RETURNFUNC(RIG_OK);
+    }
 
     SNPRINTF(cmdbuf, sizeof(cmdbuf), "F%c", vfo_letter);
 

rigs/kenwood/kenwood.h

@@ -28,7 +28,7 @@
 #include "token.h"
 #include "misc.h"
 
-#define BACKEND_VER "20220602"
+#define BACKEND_VER "20220619"
 
 #define EOM_KEN ';'
 #define EOM_TH '\r'

rigs/kenwood/ts480.c

@@ -1847,7 +1847,7 @@ const struct rig_caps malachite_caps =
     RIG_MODEL(RIG_MODEL_MALACHITE),
     .model_name = "DSP",
     .mfg_name = "Malachite",
-    .version = BACKEND_VER ".0",
+    .version = BACKEND_VER ".1",
     .copyright = "LGPL",
     .status = RIG_STATUS_STABLE,
     .rig_type = RIG_TYPE_RECEIVER,