Fixed issue with RegEdit_ReadReg()

Now have it correctly casting the void * to a uint8_t * before it uses
it in the tests.

mocks/MockRegEdit/MockRegEdit.c

@@ -75,8 +75,11 @@ void RegEdit_SetNum(void *reg, uint8_t num)
 
 uint8_t RegEdit_ReadReg(void *reg)
 {
+    uint8_t value = *(uint8_t *)reg;    
+
     mock_c()->actualCall("RegEdit_ReadReg")
         ->withPointerParameters("reg", reg)
-        ->returnUnsignedIntValueOrDefault(0);
-    //Return value is mock controlled. So it does actually return a uint8_t
+        ->returnUnsignedIntValueOrDefault(value);
+    
+    return value;
 }