anv: Do not emulate texture swizzle for INPUT_ATTACHMENT, STORAGE_IMAGE

If descriptorType is VK_DESCRIPTOR_TYPE_STORAGE_IMAGE
or VK_DESCRIPTOR_TYPE_INPUT_ATTACHMENT, the imageView member of each
element of pImageInfo must have been created with the identity swizzle.

Fixes: d2aa65eb

Signed-off-by: Danylo Piliaiev <danylo.piliaiev@globallogic.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
(cherry picked from commit c82dcf89)