gpio: fix initial state for inverted gpios

The python-periphery library XORs the initial value based on
whether or not its inverted.  This requires consumers to set
the direction to "high" for inverted pins that are off, and
"low" otherwise.

Signed-off-by:  Eric Callahan <arksine.code@gmail.com>

moonraker/components/gpio.py

@@ -121,6 +121,7 @@ class GpioFactory:
                 "documentation for details on the pin format."
             )
         bias_flag: Optional[str] = pin_match.group("bias")
+        params["inverted"] = pin_match.group("inverted") is not None
         if req_type == "event":
             params["direction"] = "in"
             params["edge"] = "both"
@@ -131,8 +132,8 @@ class GpioFactory:
                     f"Invalid pin format {pin_desc}.  Bias flag {bias_flag} "
                     "not available for output pins."
                 )
-            params["direction"] = "out" if not initial_value else "high"
-        params["inverted"] = pin_match.group("inverted") is not None
+            initial_state = bool(initial_value) ^ params["inverted"]
+            params["direction"] = "low" if not initial_state else "high"
         chip_id: str = pin_match.group("chip_id") or "gpiochip0"
         pin_name: str = pin_match.group("pin_name")
         params["pin_id"] = int(pin_match.group("pin_id"))