build-sys: create parent directory for $(PATHFILES)

When building outside the source tree there is nothing to guarantee the
target directory exists before writing to it. Most of the time this just
happens to work because something else creates the directory but not
always. For example:

    $ mkdir build
    $ cd build
    $ ../configure --disable-dependency-tracking
    $ make libuuid/uuid.pc
      GEN      libuuid/uuid.pc
    /bin/sh: line 2: libuuid/uuid.pc.tmp: No such file or directory
    make: *** [libuuid/uuid.pc] Error 1
po: update cs.po (from translationproject.org)
po: update da.po (from translationproject.org)
po: update de.po (from translationproject.org)
po: update fr.po (from translationproject.org)
po: update nl.po (from translationproject.org)
po: update pl.po (from translationproject.org)
po: update pt_BR.po (from translationproject.org)
po: update uk.po (from translationproject.org)
po: update vi.po (from translationproject.org)
po: update zh_TW.po (from translationproject.org)
po: merge changes

Signed-off-by: Karel Zak <kzak@redhat.com>
docs: update v2.25.1-ReleaseNotes

Signed-off-by: Karel Zak <kzak@redhat.com>
build-sys: release++ (v2.25.1)

Signed-off-by: Karel Zak <kzak@redhat.com>