Bug in multiboot_mbi2.c

[Seth Goldberg]

  The code that constructs the framebuffer info has a nasty bug where the 
field position and mask size for red are set to the GREEN values:

      tag->common.framebuffer_type = MULTIBOOT_FRAMEBUFFER_TYPE_RGB;
      tag->common.framebuffer_type = MULTIBOOT_FRAMEBUFFER_TYPE_RGB;
-->   tag->framebuffer_red_field_position = mode_info.green_field_pos;
-->   tag->framebuffer_red_mask_size = mode_info.green_mask_size;
      tag->framebuffer_green_field_position = mode_info.green_field_pos;
      tag->framebuffer_green_mask_size = mode_info.green_mask_size;
      tag->framebuffer_blue_field_position = mode_info.blue_field_pos;
      tag->framebuffer_blue_mask_size = mode_info.blue_mask_size;


 --S