use speed fan component to control light level

restore state of fan/light on boot, default to On

packages/gp8403.yaml

@@ -23,14 +23,12 @@ fan:
     output: gp8403_ch0
     id: fan_speed
     name: "Fan"
-
-light:
-  - platform: monochromatic
+    restore_mode: RESTORE_DEFAULT_ON
+  - platform: speed
+    output: gp8403_ch1
     id: light_level
     name: "Light"
-    output: gp8403_ch1
-    default_transition_length: 0s
-    gamma_correct: 0
+    restore_mode: RESTORE_DEFAULT_ON
 
 prometheus:
   relabel: