Fix parm_gran for Kenwood

https://github.com/Hamlib/Hamlib/issues/1357

rigs/kenwood/r5000.c

@@ -82,7 +82,10 @@ const struct rig_caps r5000_caps =
     .has_set_level =  RIG_LEVEL_SET(R5000_LEVEL_ALL),
     .has_get_parm =  R5000_PARM_ALL,
     .has_set_parm =  RIG_PARM_SET(R5000_PARM_ALL),
-    .parm_gran =  {},
+    .parm_gran =  {
+        [PARM_TIME] = {.min = {.i = 0}, .max = {.i = 86399}, .step = {.i = 1}},
+    },
+
     .ctcss_list =  NULL,
     .dcs_list =  NULL,
     .preamp =   { RIG_DBLST_END, },

rigs/kenwood/thd7.c

@@ -110,7 +110,9 @@ const struct rig_caps thd7a_caps =
     {
 #include "level_gran_kenwood.h"
     },
-    .parm_gran =  {},
+    .parm_gran =  {
+        [PARM_BACKLIGHT] = {.min = {.f = 0.0f}, .max = {.f = 1.0f}, .step = {.f = 1.0f / 255.0f}},
+    },
     .ctcss_list =  kenwood38_ctcss_list,
     .dcs_list =  NULL,
     .preamp =   { RIG_DBLST_END, },

rigs/kenwood/thd72.c

@@ -1651,7 +1651,10 @@ const struct rig_caps thd72a_caps =
     {
 #include "level_gran_kenwood.h"
     },
-    .parm_gran =  {},
+    .parm_gran =  {
+        [PARM_TIME] = {.min = {.i = 0}, .max = {.i = 86399}, .step = {.i = 1}},
+        [PARM_APO] = { .min = { .i = 1 }, .max = { .i = 1439} },
+    },
     .ctcss_list =  kenwood42_ctcss_list,
     .dcs_list =  thd72dcs_list,
     .preamp =   { RIG_DBLST_END, },

rigs/kenwood/thd74.c

@@ -1677,7 +1677,12 @@ const struct rig_caps thd74_caps =
     {
 #include "level_gran_kenwood.h"
     },
-    .parm_gran =  {},
+    .parm_gran =  {
+        [PARM_TIME] = {.min = {.i = 0}, .max = {.i = 86399}, .step = {.i = 1}},
+    },
+
+
+
     .ctcss_list =  kenwood38_ctcss_list,
     .dcs_list =  NULL,
     .preamp =   { RIG_DBLST_END, },