Add engineering output to deviceState.networkInfo (#20948)

* Add engineering output to deviceState.networkInfo

* update cereal
old-commit-hash: e8641f6430

cereal

@@ -1 +1 @@
-Subproject commit 42b73b00f1a9d08ce03e996aef6474569c426888
+Subproject commit 4cfd67776eaf7926bd5abf35668bee8c5faee320

selfdrive/hardware/tici/hardware.py

@@ -133,11 +133,13 @@ class Tici(HardwareBase):
     modem = self.get_modem()
     try:
       info = modem.Command("AT+QNWINFO", int(TIMEOUT * 1000), dbus_interface=MM_MODEM, timeout=TIMEOUT)
+      extra = modem.Command('AT+QENG="servingcell"', int(TIMEOUT * 1000), dbus_interface=MM_MODEM, timeout=TIMEOUT)
     except Exception:
       return None
 
     if info and info.startswith('+QNWINFO: '):
       info = info.replace('+QNWINFO: ', '').replace('"', '').split(',')
+      extra = "" if extra is None else extra.replace('+QENG: "servingcell",', '').replace('"', '')
 
       if len(info) != 4:
         return None
@@ -148,7 +150,8 @@ class Tici(HardwareBase):
         'technology': technology,
         'operator': operator,
         'band': band,
-        'channel': int(channel)
+        'channel': int(channel),
+        'extra': extra,
       })
     else:
       return None