Moving autobrightness display configs to a different file

Currently, all the display configs are controlled from
display_device_config.xsd file. This has led to a lot of configs being
controlled from this single source, making it error prone and less
readable. This is to decouple that, and move the autobrightness related
display configs to a separate file. We choose to move autobrightness
configs because we soon plan to add more configs to this.

Bug: 235345267
Test: atest DisplayDeviceConfigTest#testConfigValues
Change-Id: Ia3ba1065663f478ffcb6f4ea5951958352679f76

services/core/xsd/display-device-config/autobrightness.xsd

@@ -0,0 +1,33 @@
+<!--
+    Copyright (C) 2022 The Android Open Source Project
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+         http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+-->
+<xs:schema version="2.0"
+           elementFormDefault="qualified"
+           xmlns:xs="http://www.w3.org/2001/XMLSchema">
+    <xs:complexType name="autoBrightness">
+        <xs:sequence>
+            <!-- Sets the debounce for autoBrightness brightening in millis-->
+            <xs:element name="brighteningLightDebounceMillis" type="xs:nonNegativeInteger"
+                        minOccurs="0" maxOccurs="1">
+                <xs:annotation name="final"/>
+            </xs:element>
+            <!-- Sets the debounce for autoBrightness darkening in millis-->
+            <xs:element name="darkeningLightDebounceMillis" type="xs:nonNegativeInteger"
+                        minOccurs="0" maxOccurs="1">
+                <xs:annotation name="final"/>
+            </xs:element>
+        </xs:sequence>
+    </xs:complexType>
+</xs:schema>

services/core/xsd/display-device-config/display-device-config.xsd

@@ -23,6 +23,7 @@
 <xs:schema version="2.0"
            elementFormDefault="qualified"
            xmlns:xs="http://www.w3.org/2001/XMLSchema">
+    <xs:include schemaLocation="autobrightness.xsd" />
     <xs:element name="displayConfiguration">
         <xs:complexType>
             <xs:sequence>
@@ -102,22 +103,6 @@
     </xs:element>
 
     <!-- Type definitions -->
-
-    <xs:complexType name="autoBrightness">
-        <xs:sequence>
-            <!-- Sets the debounce for autoBrightness brightening in millis-->
-            <xs:element name="brighteningLightDebounceMillis" type="xs:nonNegativeInteger"
-                        minOccurs="0" maxOccurs="1">
-                <xs:annotation name="final"/>
-            </xs:element>
-            <!-- Sets the debounce for autoBrightness darkening in millis-->
-            <xs:element name="darkeningLightDebounceMillis" type="xs:nonNegativeInteger"
-                        minOccurs="0" maxOccurs="1">
-                <xs:annotation name="final"/>
-            </xs:element>
-        </xs:sequence>
-    </xs:complexType>
-
     <xs:complexType name="displayQuirks">
         <xs:sequence>
             <xs:element name="quirk" type="xs:string" minOccurs="0" maxOccurs="unbounded" />