Refactor framebuffer format support
requested to merge dennis.wildmark/vulkan-wsi-layer:vk_khr_display_surface into features/vk_khr_display
Add support for format modifiers in framebuffers using drmModeAddFB2WithModifiers. Add compilation flag to force VK_KHR_display to not support format modifiers for framebuffers.
Change-Id: Ie8eb2e96e543a15ab3534a7e73425f277a4b7d58 Signed-off-by: Dennis Wildmark dennis.wildmark@arm.com