Update correct codes for esp_ota_write

Co-authored-by: Harshit Malpani <[email protected]>

components/app_update/include/esp_ota_ops.h

@@ -117,7 +117,7 @@ esp_err_t esp_ota_begin(const esp_partition_t* partition, size_t image_size, esp
  *    - ESP_ERR_FLASH_OP_TIMEOUT or ESP_ERR_FLASH_OP_FAIL: Flash write failed.
  *    - ESP_ERR_OTA_SELECT_INFO_INVALID: OTA data partition has invalid contents
  *    - ESP_ERR_INVALID_SIZE: if write would go out of bounds of the partition
- *    - ESP_ERR_NOT_ALLOWED: if partition is read-only
+ *    - or one of error codes from lower-level flash driver.
  */
 esp_err_t esp_ota_write(esp_ota_handle_t handle, const void* data, size_t size);