link to fontconfig in font converter build

skia/font_converter/build/premake5.lua

diff --git a/skia/font_converter/build/premake5.lua b/skia/font_converter/build/premake5.lua
index 9bb82c1..5d6df52 100644
--- a/skia/font_converter/build/premake5.lua
+++ b/skia/font_converter/build/premake5.lua
@@ -34,7 +34,7 @@
         "skia",
         "z",
         "dl",
-        "GL"
+        "fontconfig"
     }
 end