fix: redefine status-enums and remove dead code

Author: Stefan Hirschenberger

src/BlinkMarinePkpCanOpen.cpp

@@ -110,7 +110,7 @@ uint8_t Pkp::getKeyState(uint8_t keyIndex) {
  * @param inputIndex The index of the wired input (0 to PKP_MAX_WIRED_IN_AMOUNT - 1).
  * @return The state of the specified wired input, or 0 if the index is out of range.
  */
-uint8_t Pkp::getWiredInput(uint8_t inputIndex, bool analog) {
+uint8_t Pkp::getWiredInput(uint8_t inputIndex) {
     if (inputIndex > PKP_MAX_WIRED_IN_AMOUNT - 1) {
         return 0;
     }

src/BlinkMarinePkpCanOpen.h

@@ -36,10 +36,10 @@ typedef uint8_t (*CanMsgTxCallback)(const struct can_frame& txMsg);
 class Pkp {
   public:
     // ------ Public Type Definitions ------
-    enum keypadCanStatus_e : uint8_t {
-        KPS_FRESH                    = 0,
-        KPS_RX_WITHIN_LAST_SECOND    = 1,
-        KPS_NO_RX_WITHIN_LAST_SECOND = 3
+    enum keypadCanStatus_e : int8_t {
+        KPS_FRESH                    = -1,
+        KPS_RX_WITHIN_LAST_SECOND    = 0,
+        KPS_NO_RX_WITHIN_LAST_SECOND = 1
     };
 
     enum keyMode_e : uint8_t {