params: Fix loading delay on startup (#1297)

params frame counter init

make sure param_store.update gets processed on first call

Co-authored-by: Jason Wen <haibin.wen3@gmail.com>

sunnypilot/selfdrive/controls/lib/param_store.py

@@ -22,7 +22,7 @@ class ParamStore:
     self.keys = universal_params + brand_params
     self._params = {}
 
-    self.frame = 0
+    self.frame = -1
 
   def update(self, params: Params) -> None:
     self.frame += 1