Fix fdt_chosen() to call ft_board_setup(), clean up long lines.

Fix fdt_chosen() to call ft_board_setup(), clean up long lines.

The fdt_chosen() function was adding/seting some properties ad-hoc
  improperly and duplicated (poorly) what was done in ft_board_setup()

Clean up long lines (setting properties, printing errors).

Signed-off-by: Gerald Van Baren <vanbaren@cideas.com>