coreutils: upgrade to 8.29

coreutils: upgrade to 8.29

* ls.c license checksum is changed, but the license remains the same.

* The backported patch 0001-doc-fix-Up-field-of-realpath-usage-examples.patch
  is dropped.

* The new version provides native manual page support, there's no
  need to download extra manual page from gentoo site.

* man-decouple-manpages-from-build.patch is removed, as new version
  has manual page support in environment lacking of perl.

* hostname is explicitly enabled to keep the same with previous recipe's
  behaviour.

* ALTERNATIVE_XXX settings for lbracket.1 are removed as there's no such
  file.

Signed-off-by: Chen Qi <Qi.Chen@windriver.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>