sm8250-common: Import vendor scripts from stock

* And discard our old ones while at it.

Change-Id: Ibe6d792d0c881b984d5ab0cfeb84473726d3303a

rootdir/bin/init.oplus_chg.sh

@@ -0,0 +1,22 @@
+#! /vendor/bin/sh
+
+export PATH=/vendor/bin
+
+prefix="/sys/class/oplus_chg"
+
+if [[ -d "$prefix" ]]
+then
+    for i in `ls "$prefix"`
+    do
+        for j in `ls "$prefix"/"$i"`
+        do
+            #skip directories to prevent possible security issues.
+            if [[ -d "$prefix"/"$i"/"$j" ]]
+            then
+                continue
+            else
+                chown -h system.system "$prefix"/"$i"/"$j"
+            fi
+        done
+    done
+fi