esp32/adc: Set ADC to 12bit by default on esp32c6.

Signed-off-by: Andrew Leech <andrew@alelec.net>

Author: dmfaria

ports/esp32/adc.c

@@ -45,7 +45,7 @@ void madcblock_bits_helper(machine_adc_block_obj_t *self, mp_int_t bits) {
  self->width = ADC_WIDTH_BIT_11;
  break;
  #endif
- #if CONFIG_IDF_TARGET_ESP32 || CONFIG_IDF_TARGET_ESP32C3 || CONFIG_IDF_TARGET_ESP32S3
+ #if CONFIG_IDF_TARGET_ESP32 || CONFIG_IDF_TARGET_ESP32C3 || CONFIG_IDF_TARGET_ESP32C6 || CONFIG_IDF_TARGET_ESP32S3
  case 12:
  self->width = ADC_WIDTH_BIT_12;
  break;

ports/esp32/machine_adc_block.c

@@ -32,10 +32,10 @@
 #include "driver/adc.h"
 
 machine_adc_block_obj_t madcblock_obj[] = {
- #if CONFIG_IDF_TARGET_ESP32 || CONFIG_IDF_TARGET_ESP32C3 || CONFIG_IDF_TARGET_ESP32S3
+ #if CONFIG_IDF_TARGET_ESP32 || CONFIG_IDF_TARGET_ESP32C3 || CONFIG_IDF_TARGET_ESP32C6 || CONFIG_IDF_TARGET_ESP32S3
  {{&machine_adc_block_type}, ADC_UNIT_1, 12, -1, {0}},
  {{&machine_adc_block_type}, ADC_UNIT_2, 12, -1, {0}},
- #elif CONFIG_IDF_TARGET_ESP32S2 || CONFIG_IDF_TARGET_ESP32C6
+ #elif CONFIG_IDF_TARGET_ESP32S2
  {{&machine_adc_block_type}, ADC_UNIT_1, 13, -1, {0}},
  {{&machine_adc_block_type}, ADC_UNIT_2, 13, -1, {0}},
  #endif