Add VK_EXT_pci_bus_info support while doing some misc fixes
The first few commits come from https://gitlab.freedesktop.org/olv/venus-protocol/-/merge_requests/41 here. Mostly about migrating hardcoded indents to be dynamic, making the code more prepared to be placed in conditions, etc.
The last commit adds VK_EXT_pci_bus_info support.
MESA: mesa/mesa!20310 (merged)
Edited by Yiwei Zhang