cpplint: Get rid of some C-style castings

Signed-off-by: Gergely Nagy <algernon@keyboard.io>

src/kaleidoscope/device/virtual/Virtual.cpp

@@ -360,7 +360,7 @@ void VirtualLEDDriver::syncLeds() {
 }
 
 void VirtualLEDDriver::setCrgbAt(uint8_t i, cRGB color) {
-  if ((int)i >= (int)led_count) {
+  if (static_cast<int>(i) >= static_cast<int>(led_count)) {
     log_error("Virtual::setCrgbAt: Index %d out of bounds\n", i);
     return;
   }
@@ -368,7 +368,7 @@ void VirtualLEDDriver::setCrgbAt(uint8_t i, cRGB color) {
 }
 
 cRGB VirtualLEDDriver::getCrgbAt(uint8_t i) const {
-  if ((int)i >= (int)led_count) {
+  if (static_cast<int>(i) >= static_cast<int>(led_count)) {
     log_error("Virtual::getCrgbAt: Index %d out of bounds\n", i);
     return CRGB(0, 0, 0);
   }

src/kaleidoscope/driver/led/WS2812.h

@@ -85,7 +85,7 @@ class WS2812 {
   bool modified_ = false;
 
   void sendArrayWithMask(uint8_t maskhi) {
-    uint8_t *data = (uint8_t *)leds_;
+    uint8_t *data = reinterpret_cast<uint8_t *>(leds_);
     uint16_t datalen = ledCount * sizeof(Color);
     uint8_t curbyte, ctr, masklo;
     uint8_t sreg_prev;