Rename huawei/backlight to huawei, because it will contain other values

Huawei/Overlay/Android.mk

@@ -1,7 +1,7 @@
 LOCAL_PATH := $(call my-dir)
 include $(CLEAR_VARS)
 LOCAL_MODULE_TAGS := optional
-LOCAL_PACKAGE_NAME := treble-overlay-huawei-backlight
+LOCAL_PACKAGE_NAME := treble-overlay-huawei
 LOCAL_MODULE_PATH := $(TARGET_OUT)/overlay
 LOCAL_IS_RUNTIME_RESOURCE_OVERLAY := true
 include $(BUILD_PACKAGE)

Huawei/Overlay/AndroidManifest.xml

@@ -1,9 +1,9 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-        package="me.phh.treble.overlay.huawei.backlight"
+        package="me.phh.treble.overlay.huawei"
         android:versionCode="1"
         android:versionName="1.0">
         <overlay android:targetPackage="android"
-                android:requiredSystemPropertyName="persist.sys.overlay.huawei.backlight"
+                android:requiredSystemPropertyName="persist.sys.overlay.huawei"
                 android:requiredSystemPropertyValue="true"
 		android:priority="4"
 		android:isStatic="true" />

overlay.mk

@@ -1,5 +1,5 @@
 PRODUCT_PACKAGES += \
-	treble-overlay-huawei-backlight \
+	treble-overlay-huawei \
 	treble-overlay-NavBar \
 	treble-overlay-NightMode \
 	treble-overlay-Telephony-LTE \