Also update the unittests to expect version 1.2.

Bug: b/147825369
Tests: dEQP-VK.*
Change-Id: Ib3bb07662140fa976ec2532124ab2d7337f34c55
Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/47348Reviewed-by: Nicolas Capens <nicolascapens@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>
Tested-by: Sean Risser <srisser@google.com>
Commit-Queue: Sean Risser <srisser@google.com>