Since multiple vidconsole drivers exists, vidconsole_get_font_size()
implementation cannot longer live in vidconsole_uclass.c file.
Move current vidconsole_get_font_size logic to truetype driver ops.
Signed-off-by: Dzmitry Sankouski <dsankouski@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>