[Pass] Add hyphen to some pass names (#74287)

Here is the list of the renamed passes:
- `callbrprepare` -> `callbr-prepare`
- `dwarfehprepare` -> `dwarf-eh-prepare`
- `flattencfg` -> `flatten-cfg`
- `loweratomic` -> `lower-atomic`
- `lowerinvoke` -> `lower-invoke`
- `lowerswitch` -> `lower-switch`
- `winehprepare` -> `win-eh-prepare`
- `targetir` -> `target-ir`
- `targetlibinfo` -> `target-lib-info`

Legacy passes are not affected.