Reduced useless warnings

platforms/esp/32/clockless_rmt_esp32.cpp

@@ -433,7 +433,7 @@ void ESP32RMTController::startOnChannel(int channel)
 
     if (FASTLED_RMT_BUILTIN_DRIVER) {
         // -- Use the built-in RMT driver to send all the data in one shot
-        rmt_register_tx_end_callback(doneOnRMTChannel, (void *) channel);
+        rmt_register_tx_end_callback(doneOnRMTChannel, reinterpret_cast<void *>(channel));
         rmt_write_items(mRMT_channel, mBuffer, mBufferSize, false);
     } else {
         // -- Use our custom driver to send the data incrementally

platforms/esp/32/clockless_rmt_esp32.h

@@ -117,7 +117,7 @@ extern "C" {
 #include "esp_intr_alloc.h"
 #include "driver/gpio.h"
 #include "driver/rmt.h"
-#include "driver/periph_ctrl.h"
+#include "esp_private/periph_ctrl.h"
 #include "freertos/semphr.h"
 #include "soc/rmt_struct.h"