Fix findunusedresources to handle package name different from path

Change-Id: Ia010d0f71e3e7141f762fc83ff34d3426bac85a0

tools/findunused/findunusedresources

@@ -35,6 +35,7 @@ do
     if [ -d $app/res ]
     then
         appname=$(basename $app)
+        iappname=$(grep LOCAL_PACKAGE_NAME $app/Android.mk | sed 's/.*:= *//')
         resources=
         for res in $(echo $app/res/* $(find $ANDROID_BUILD_TOP/vendor -type d -wholename $ANDROID_BUILD_TOP/vendor/*/$appname/res | grep overlay))
         do
@@ -51,7 +52,7 @@ do
         fi
 
         # find the R.java file that contains all the generated resource identifiers
-        rDotJava=$(find $ANDROID_BUILD_TOP/out/target/common/obj/APPS/${appname}_intermediates/ -name R.java)
+        rDotJava=$(find $ANDROID_BUILD_TOP/out/target/common/obj/APPS/${iappname}_intermediates/ -name R.java)
 
         # Simplistically process the content of the file to get the names of all the constants,
         # and try to find a reference to each constant.