Accept SPV_KHR_storage_buffer_storage_class, which is part of SPIRV 1.3.

Bug: b/130937460
Test: dEQP-VK.spirv_assembly.*
Change-Id: Ifbef9f3093ce7cca90edd75ebd86831f16b630cf
Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/29508Tested-by: Chris Forbes <chrisforbes@google.com>
Presubmit-Ready: Chris Forbes <chrisforbes@google.com>
Kokoro-Presubmit: kokoro <noreply+kokoro@google.com>
Reviewed-by: Nicolas Capens <nicolascapens@google.com>