Ports: Specify missing library when linking SDL2_ttf

Ports/SDL2_ttf/package.sh

@@ -17,5 +17,5 @@ configure() {
 
 install() {
     run make install DESTDIR=${SERENITY_INSTALL_ROOT} $installopts
-    run ${CC} -shared -o ${SERENITY_INSTALL_ROOT}/usr/local/lib/libSDL2_ttf.so -Wl,-soname,libSDL2_ttf.so -Wl,--whole-archive ${SERENITY_INSTALL_ROOT}/usr/local/lib/libSDL2_ttf.a -Wl,--no-whole-archive
+    run ${CC} -shared -o ${SERENITY_INSTALL_ROOT}/usr/local/lib/libSDL2_ttf.so -Wl,-soname,libSDL2_ttf.so -Wl,--whole-archive ${SERENITY_INSTALL_ROOT}/usr/local/lib/libSDL2_ttf.a -Wl,--no-whole-archive -lfreetype
 }