Initial support for ESP32-C6-DevKitC-1 (#1054)

Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>

platform.py

@@ -119,8 +119,8 @@ class Espressif32Platform(PlatformBase):
             else:
                 self.packages.pop("toolchain-xtensa-%s" % available_mcu, None)
 
-        if mcu in ("esp32s2", "esp32s3", "esp32c3"):
-            # RISC-V based toolchain for ESP32C3, ESP32S2, ESP32S3 ULP
+        if mcu in ("esp32s2", "esp32s3", "esp32c3", "esp32c6"):
+            # RISC-V based toolchain for ESP32C3, ESP32C6 ESP32S2, ESP32S3 ULP
             self.packages["toolchain-riscv32-esp"]["optional"] = False
 
         if build_core == "mbcwb":
@@ -183,7 +183,7 @@ class Espressif32Platform(PlatformBase):
             "tumpa",
         ]
 
-        if board.get("build.mcu", "") in ("esp32c3", "esp32s3"):
+        if board.get("build.mcu", "") in ("esp32c3", "esp32c6", "esp32s3"):
             supported_debug_tools.append("esp-builtin")
 
         upload_protocol = board.manifest.get("upload", {}).get("protocol")