util-linux: use update-alternatives for more manpages

util-linux: use update-alternatives for more manpages

To fix:

   file /usr/share/man/man1/eject.1 conflicts between attempted installs
   of util-linux-doc-2.29.1-r0.core2_64 and eject-doc-2.1.5-r1.core2_64

and

   file /usr/share/man/man1/logger.1 conflicts between attempted installs
   of util-linux-doc-2.29.1-r0.core2_64 and inetutils-doc-1.9.4-r0.core2_64

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>