zlib: update to upstream version 1.2.8

Only version number and release year changed in license text.

(From OE-Core rev: 776fa3e49db312bcfd71c6b0637c989ad36fc84b)

Signed-off-by: Marko Lindqvist <cazfi74@gmail.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

diff --git a/meta/recipes-core/zlib/zlib-1.2.7/remove.ldconfig.call.patch b/meta/recipes-core/zlib/zlib-1.2.8/remove.ldconfig.call.patch
similarity index 100%
rename from meta/recipes-core/zlib/zlib-1.2.7/remove.ldconfig.call.patch
rename to meta/recipes-core/zlib/zlib-1.2.8/remove.ldconfig.call.patch