Add MCUboot support for ESP32-C3 when using the Espressif HAL
Signed-off-by: Gustavo Henrique Nihei <gustavo.nihei@espressif.com>
Initially supporting ESP32-C3 chip, to be followed by other RISC-V-based chips from Espressif. Signed-off-by: Gustavo Henrique Nihei <gustavo.nihei@espressif.com>