Fix linking order for builtin freetype
Fix linking order for builtin freetype

Before this change the libfreetype_builtin.a lib would be appended
at the very end of the linking flags, after system libs such as -lX11
or -lkernel32.

(cherry picked from commit 26c6c2b01a7507038f051bcdde9fcb41c7cc4d1f)

pixelpicosean/my-godot-2.1,pixelpicosean/my-godot-2.1,pixelpicosean/my-godot-2.1,pixelpicosean/my-godot-2.1,pixelpicosean/my-godot-2.1