pandad: wait for internal panda to come up (#27705)

* pandad: wait for internal panda to come up

* test

* more checks
old-commit-hash: f832a71038f5d50f991d36d7860bfc0ef912794e

system/hardware/base.py

@@ -135,6 +135,9 @@ class HardwareBase(ABC):
   def get_networks(self):
     pass
 
+  def has_internal_panda(self) -> bool:
+    return False
+
   def reset_internal_panda(self):
     pass
 

system/hardware/tici/hardware.py

@@ -565,6 +565,9 @@ class Tici(HardwareBase):
     except Exception:
       return -1, -1
 
+  def has_internal_panda(self):
+    return True
+
   def reset_internal_panda(self):
     gpio_init(GPIO.STM_RST_N, True)