Fix build error due to giflib build changes

Fix build error due to giflib build changes

  - Autoconf was removed and replaced to Makefile with script

  - Changes build for tizen
   1. change in Makefile
  The static library(.a) was commented out.

   2. change in spec
  make libgif.so libutil.so
  : build libraries

  install install-lib install-include install-bin
  : install library, header and utility tools

  install and rename libutil.so to libgifutil.so due to confict name with glib.c
  : The libutil.so was added for deprecated function 'GifQuantizeBuffer'.
    It will be removed since giflib 5.2.0.

Change-Id: Iab75711144a50fbaec4ce15cfb6e9c3f74b7a59d