Change permissions of apps' home dir to 0700 for SDK > 23

This patchset changes the installd such that apps' home
directory has permissions set to 0700 if build for a
target SDK version. In consequence the commands

create_app_data and move_complete_app

get one more parameter, the target SDK version.
Apps built for a lower SDK version will still have
home directories with permissions set to 0751.

Bug: 7208882
Change-Id: I651da956dd57d882772b23a433421e9130ea4c0b