phone-firmware update rules

Number of APIs: 2

1. List firmware update rules GET {{baseUrl}}/phone/firmware_update_rules?site_id=8f71O6rWT8KFUGQmJIFAdQ&page_size=30&next_page_token=BJLYC6PABbAHdjwSkGVQeeR6B1juwHqj3G2

2. Add a firmware update rule POST {{baseUrl}}/phone/firmware_update_rules