Fix PKTAM in kenwood.c

https://github.com/Hamlib/Hamlib/issues/1502

rigs/kenwood/kenwood.c

@@ -152,8 +152,8 @@ rmode_t kenwood_mode_table[KENWOOD_MODE_TABLE_MAX] =
     [11] = RIG_MODE_PSKR,
     [12] = RIG_MODE_PKTLSB,
     [13] = RIG_MODE_PKTUSB,
-    [14] = RIG_MODE_PKTFM,
-    [14] = RIG_MODE_PKTAM,
+    [14] = RIG_MODE_PKTFM, // FM-D1 not supported yet
+    [15] = RIG_MODE_PKTAM, // AM-D1 not supported yet
     [16] = RIG_MODE_LSBD2,
     [17] = RIG_MODE_USBD2,
     [18] = RIG_MODE_NONE, // FM-D2 not supported yet

rigs/kenwood/kenwood.h

@@ -28,7 +28,7 @@
 #include "token.h"
 #include "idx_builtin.h"
 
-#define BACKEND_VER "20240220"
+#define BACKEND_VER "20240224"
 
 #define EOM_KEN ';'
 #define EOM_TH '\r'