Revert "don't use cereal"

This reverts commit 7208524d42.

system/hardware/base.py

@@ -1,23 +1,10 @@
 import os
 from abc import abstractmethod, ABC
 from dataclasses import dataclass, fields
-from enum import IntEnum
-
-class NetworkType(IntEnum):
-  none = 0
-  wifi = 1
-  cell2G = 2
-  cell3G = 3
-  cell4G = 4
-  cell5G = 5
-  ethernet = 6
-
-class NetworkStrength(IntEnum):
-  unknown = 0
-  poor = 1
-  moderate = 2
-  good = 3
-  great = 4
+
+from cereal import log
+
+NetworkType = log.DeviceState.NetworkType
 
 @dataclass
 class ThermalZone:

system/hardware/pc/hardware.py

@@ -1,6 +1,10 @@
 import random
 
-from openpilot.system.hardware.base import HardwareBase, NetworkStrength, NetworkType
+from cereal import log
+from openpilot.system.hardware.base import HardwareBase
+
+NetworkType = log.DeviceState.NetworkType
+NetworkStrength = log.DeviceState.NetworkStrength
 
 
 class Pc(HardwareBase):

system/hardware/tici/hardware.py

@@ -8,8 +8,9 @@ from enum import IntEnum
 from functools import cached_property, lru_cache
 from pathlib import Path
 
+from cereal import log
 from openpilot.common.gpio import gpio_set, gpio_init, get_irqs_for_action
-from openpilot.system.hardware.base import HardwareBase, NetworkStrength, NetworkType, ThermalConfig, ThermalZone
+from openpilot.system.hardware.base import HardwareBase, ThermalConfig, ThermalZone
 from openpilot.system.hardware.tici import iwlist
 from openpilot.system.hardware.tici.pins import GPIO
 from openpilot.system.hardware.tici.amplifier import Amplifier
@@ -52,6 +53,9 @@ class NMMetered(IntEnum):
 TIMEOUT = 0.1
 REFRESH_RATE_MS = 1000
 
+NetworkType = log.DeviceState.NetworkType
+NetworkStrength = log.DeviceState.NetworkStrength
+
 # https://developer.gnome.org/ModemManager/unstable/ModemManager-Flags-and-Enumerations.html#MMModemAccessTechnology
 MM_MODEM_ACCESS_TECHNOLOGY_UMTS = 1 << 5
 MM_MODEM_ACCESS_TECHNOLOGY_LTE = 1 << 14