Enable storage image tests for more formats

Enable storage image tests for more formats

On implementations that don't support the whole ExtendedFormat set, tests
that used any format from that set would return NotSupported. Changing
this to checking the actual format for storage image support allows us
still to run these tests on implementations where they're supported.

Component: Vulkan
VK-GL-CTS issue: 2090
Affects: dEQP-VK.image.mutable.*
         dEQP-VK.image.texel_view_compatible.*
         dEQP-VK.synchronization.*

Change-Id: I7de9c0bde1613d2cc1fc9f8490955c580a1939c1