Make ft891 power level work like ft991 which supposedly is the same according to JA1NLX

rigs/yaesu/ft891.c

@@ -130,7 +130,7 @@ struct rig_caps ft891_caps =
     RIG_MODEL(RIG_MODEL_FT891),
     .model_name =         "FT-891",
     .mfg_name =           "Yaesu",
-    .version =            NEWCAT_VER ".9",
+    .version =            NEWCAT_VER ".10",
     .copyright =          "LGPL",
     .status =             RIG_STATUS_STABLE,
     .rig_type =           RIG_TYPE_TRANSCEIVER,

rigs/yaesu/ft891.h

@@ -69,13 +69,18 @@
                RIG_OP_UP|RIG_OP_DOWN|RIG_OP_BAND_UP|RIG_OP_BAND_DOWN|\
                RIG_OP_TO_VFO|RIG_OP_FROM_VFO)
 
-// Borrowed from FLRig -- Thanks to Dave W1HKJ
+// borrowed from FT991
 #define FT891_RFPOWER_METER_CAL \
     { \
-        2, \
+        7, \
         { \
             {0, 0.0f}, \
-            {100, 100.0f}, \
+            {10, 0.8f}, \
+            {50, 8.0f}, \
+            {100, 26.0f}, \
+            {150, 54.0f}, \
+            {200, 92.0f}, \
+            {250, 140.0f}, \
         } \
     }