Vulkan 1.2 added several entry points, and even if SwiftShader doesn't
support the features that introduced them, dEQP requires they be
implemented regardless.

Test: dEQP-VK.api.version_check.entry_points
Bug: b/182287812
Change-Id: I0d90532e8e1508b71abc39c723167d9586d2cb84
Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/53468
Commit-Queue: Sean Risser <srisser@google.com>
Tested-by: Sean Risser <srisser@google.com>
Reviewed-by: Nicolas Capens <nicolascapens@google.com>