Initial Support for RP2040 platform (#3284)

Co-authored-by: Paulus Schoutsen <balloob@gmail.com>

esphome/components/ota/ota_backend_arduino_rp2040.h

@@ -0,0 +1,27 @@
+#pragma once
+#include "esphome/core/defines.h"
+#ifdef USE_ARDUINO
+#ifdef USE_RP2040
+
+#include "esphome/core/macros.h"
+#include "ota_backend.h"
+#include "ota_component.h"
+
+namespace esphome {
+namespace ota {
+
+class ArduinoRP2040OTABackend : public OTABackend {
+ public:
+  OTAResponseTypes begin(size_t image_size) override;
+  void set_update_md5(const char *md5) override;
+  OTAResponseTypes write(uint8_t *data, size_t len) override;
+  OTAResponseTypes end() override;
+  void abort() override;
+  bool supports_compression() override { return false; }
+};
+
+}  // namespace ota
+}  // namespace esphome
+
+#endif  // USE_RP2040
+#endif  // USE_ARDUINO