Make zone LED count a char as it can only be up to 0xFF

Author: CalcProgrammer1

Controllers/PolychromeController/PolychromeController.h

@@ -112,7 +112,7 @@ class PolychromeController
     void            SetColorsAndSpeed(unsigned char led, unsigned char red, unsigned char green, unsigned char blue);
     void            SetMode(unsigned char mode, unsigned char speed);
 
-    unsigned int            zone_led_count[6];
+    unsigned char           zone_led_count[6];
 
 private:
     unsigned int            asrock_type;