powerpc: ppc4xx: Enable CONFIG_DISPLAY_BOARDINFO
This also displays the "Board:" line in the bootup text with the
generic board support code.
Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Simon Glass <sjg@chromium.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>