Only pass VkImageViewMinLodCreateInfoEXT when minLod is != 0.0f

Only pass VkImageViewMinLodCreateInfoEXT when minLod is != 0.0f

We avoid to passing VkImageViewMinLodCreateInfoEXT when creating
the image view when the tests are actually not testing this.

Therefore, the drivers that don't support this extension won't
see errors when processing VkImageViewCreateInfo.

Components: Vulkan
VK-GL-CTS issue: 3094

Affected tests:

    dEQP-VK.texture.mipmap.*

Signed-off-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>
Change-Id: I09110ef2e6ebfb6f55c084eda85359ebf5cfa742