feat(cpn): Radiomaster Boxer support (#2910)

* feat(cpn): Initial Radiomaster Boxer support

* fix(build): Halt if invalid simulator plugin specified

* fix: 6POS not correctly defined

* chore: Less EEPROM stuff needed

* Start of simulator support

* Enable left buttons and fix area mapping of page up and down

* fix(cpn): Internal reference to pots

---------

Co-authored-by: elecpower <neilh713@tpg.com.au>

tools/build-companion.sh

@@ -66,7 +66,7 @@ cd build
 declare -a simulator_plugins=(x9lite x9lites
                               x7 x7-access
                               t8 t12 tx12 tx12mk2
-                              zorro commando8
+                              zorro commando8 boxer
                               tlite tpro lr3pro
                               x9d x9dp x9dp2019 x9e
                               xlite xlites
@@ -107,6 +107,9 @@ do
         zorro)
             BUILD_OPTIONS+="-DPCB=X7 -DPCBREV=ZORRO"
             ;;
+        boxer)
+            BUILD_OPTIONS+="-DPCB=X7 -DPCBREV=BOXER"
+            ;;
         lr3pro)
             BUILD_OPTIONS+="-DPCB=X7 -DPCBREV=LR3PRO"
             ;;
@@ -158,6 +161,10 @@ do
         commando8)
             BUILD_OPTIONS+="-DPCB=X7 -DPCBREV=COMMANDO8"
             ;;
+        *)
+            echo "Unknown target: $target_name"
+            exit 1
+            ;;
     esac
 
     rm -f CMakeCache.txt native/CMakeCache.txt