liblight: Kanged mostly from hardware/qcom/sdm845/display/liblight

Removed the LED control paths we dont yet support upstream and
updated backlight wled brightness sysfs path from downstream
"/sys/class/backlight/panel0-backlight/brightness" to upstream
"/sys/class/backlight/wled/brightness".

Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
diff --git a/manifest.xml b/manifest.xml
index 2034741..be1b23a 100644
--- a/manifest.xml
+++ b/manifest.xml
@@ -103,6 +103,15 @@
         </interface>
     </hal>
     <hal format="hidl">
+        <name>android.hardware.light</name>
+        <transport>hwbinder</transport>
+        <version>2.0</version>
+        <interface>
+            <name>ILight</name>
+            <instance>default</instance>
+        </interface>
+    </hal>
+    <hal format="hidl">
         <name>android.hardware.media.omx</name>
         <transport>hwbinder</transport>
         <version>1.0</version>