op:dreport change path of device-tree to copy to dump

1) At present using mount path, which might change so using the
permanent path.

Signed-off-by: Marri Devender Rao <devenrao@in.ibm.com>
Change-Id: Id29bbed3ac462ea6c74bb4112d515feb29657962
diff --git a/tools/dreport.d/openpower.d/plugins.d/phal_devtree b/tools/dreport.d/openpower.d/plugins.d/phal_devtree
index abcdb98..990e0ef 100644
--- a/tools/dreport.d/openpower.d/plugins.d/phal_devtree
+++ b/tools/dreport.d/openpower.d/plugins.d/phal_devtree
@@ -4,7 +4,8 @@
 # @brief: Collect PHAL devtree debug data
 #
 
-. $DREPORT_INCLUDE/functions
+# shellcheck disable=SC1091
+. "$DREPORT_INCLUDE"/functions
 
 attributes="/usr/bin/attributes"
 attr_list_file_name="PHAL_devtree.txt"
@@ -15,7 +16,7 @@
 fi
 
 #copy PHAL device tree file to dump
-devtree_file_name="/media/hostfw/running/DEVTREE"
+devtree_file_name="/var/lib/phosphor-software-manager/hostfw/running/DEVTREE"
 if [ -f "$devtree_file_name" ]; then
     add_copy_file "$devtree_file_name" "device tree"
 fi