[util] do not rely on XDG_RUNTIME_DIR availabilty
[util] do not rely on XDG_RUNTIME_DIR availabilty

Signed-off-by: Denis Zalevskiy <43c40921ef02e9bb53daac07eb9ed16452640d88@jolla.com>

android-808/statefs,android-808/statefs,android-808/statefs,android-808/statefs