nvk: Implement calibrated timestamps
Fixes #9625 (closed)
dEQP-VK.pipeline.monolithic.timestamp.*
results:
Test run totals:
Passed: 233/233 (100.0%)
Failed: 0/233 (0.0%)
Not supported: 0/233 (0.0%)
Warnings: 0/233 (0.0%)
Waived: 0/233 (0.0%)