panvk: Add more stubs

CTS results for a fraction (1/50) of dEQP-VK.*descriptor_set.* tests:

Initial:

Pass: 0, Fail: 7, Crash: 239, Skip: 95, Duration: 1:46, Remaining: 0

With command buffer stubs:

Pass: 0, Fail: 7, Crash: 239, Skip: 95, Duration: 1:44, Remaining: 0

With command buffer, CreateImageView, and CreateBufferView stubs:

Pass: 0, Fail: 232, Crash: 14, Skip: 95, Duration: 13, Remaining: 0

With command buffer, CreateImageView, CreateBufferView, and cmd copy stubs:

Pass: 0, Fail: 246, Skip: 95, Duration: 6, Remaining: 0

CTS results for all dEQP-VK.*descriptor_set.* tests:

With command buffer, CreateImageView, and CreateBufferView stubs:

Pass: 2, Fail: 12058, Crash: 720, Skip: 5187, Duration: 7:10, Remaining: 0

With command buffer, CreateImageView, CreateBufferView, and cmd copy stubs:

Pass: 2, Fail: 12778, Skip: 5187, Duration: 2:22, Remaining: 0