risc-v/esp32c3: Add support for Main System Watchdog Timer #2875
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Summary
Add support for the Main System Watchdog Timers 0 and 1 of the ESP32-C3 chips.
Tested on the ESP32-C3 DevKit with the WROOM-02 module.
Impact
New driver for the ESP32-C3, no impact if not enabled.
Testing
esp32c3-devkit:watchdog
for testing the reset action on expiration.esp32c3-devkit:watcher
for testing the interrupt trigger using the capture mode.