arrow

ARROW-16765: [Packaging][RPM] Fix conflict with arrow-libs and arrow8-libs (#13472)

/usr/share/doc/arrow/* are conflicted. We should put them into
arrowX-libs.

%doc -> %doc/%license changes aren't required for this fix but it's
better that we mark LICENSE.txt and NOTICE.txt as license related
files.

Authored-by: Sutou Kouhei <kou@clear-code.com>
Signed-off-by: Sutou Kouhei <kou@clear-code.com>