daemon: *: updated getResourcePath and getRootResourcePath signatures

This patch updates container.getResourcePath and container.getRootResourcePath
to return the error from symlink.FollowSymlinkInScope (rather than using utils).

Docker-DCO-1.1-Signed-off-by: Aleksa Sarai <cyphar@cyphar.com> (github: cyphar)
fix bug in getRootResourcePath in previous commit

Docker-DCO-1.1-Signed-off-by: Tibor Vass <teabee89@gmail.com> (github: tiborvass)