pcg-c: mark as broken on i686

(cherry picked from commit 6cfbdda1e9b28817772bb322c40c62f65ac101c2)
Signed-off-by: Domen Kožar <domen@dev.si>

Changed files
+1
pkgs
development
libraries
pcg-c
+1
pkgs/development/libraries/pcg-c/default.nix
···
platforms = platforms.unix;
maintainers = [ maintainers.linus ];
repositories.git = git://github.com/imneme/pcg-c.git;
+
broken = stdenv.isi686; # https://github.com/imneme/pcg-c/issues/11
};
}