gmp : moved unused files to obsolete dir

Signed-off-by: Frans Meulenbroeks <fransmeulenbroeks@gmail.com>

diff --git a/recipes/gmp/files/x86-fat.diff b/recipes/obsolete/gmp/files/x86-fat.diff
similarity index 100%
rename from recipes/gmp/files/x86-fat.diff
rename to recipes/obsolete/gmp/files/x86-fat.diff