Add Hyundai P harness (#24872)

* Update docs_definitions.py

* Update values.py

selfdrive/car/docs_definitions.py

@@ -144,6 +144,7 @@ class Harness(Enum):
   hyundai_m = "Hyundai M"
   hyundai_n = "Hyundai N"
   hyundai_o = "Hyundai O"
+  hyundai_p = "Hyundai P"
   custom = "Developer"
   obd_ii = "OBD-II"
   nissan_a = "Nissan A"

selfdrive/car/hyundai/values.py

@@ -146,7 +146,7 @@ CAR_INFO: Dict[str, Optional[Union[HyundaiCarInfo, List[HyundaiCarInfo]]]] = {
   ],
   CAR.KIA_STINGER: HyundaiCarInfo("Kia Stinger 2018", video_link="https://www.youtube.com/watch?v=MJ94qoofYw0", harness=Harness.hyundai_c),
   CAR.KIA_CEED: HyundaiCarInfo("Kia Ceed 2019", harness=Harness.hyundai_e),
-  CAR.KIA_EV6: HyundaiCarInfo("Kia EV6 2022", "All", harness=Harness.none),
+  CAR.KIA_EV6: HyundaiCarInfo("Kia EV6 2022", "All", harness=Harness.hyundai_p),
 
   # Genesis
   CAR.GENESIS_G70: HyundaiCarInfo("Genesis G70 2018", "All", harness=Harness.hyundai_f),