MdeModulePkg/GraphicsConsoleDxe: add modes

MdeModulePkg/GraphicsConsoleDxe: add modes

Add modes for a few common display resolutions higher than 800x600,
specifically 1024x768, 1280x800 and 1920x1080, so ConSplitterDxe has
more options available.

The mode list is not use as-is, InitializeGraphicsConsoleTextMode() will
check the list and filter out any modes which don't fit to the screen,
so this will also work fine for small displays.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn>
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>