[FIRRTL] Add missing dialect dependencies

Nobody has claimed this yet.

LowerXMR and LowerToHW, at least, may lower/introduce operations from HW, SV, and Seq dialects.

Fix the dependentDialects to ensure this works properly (such as when invoking via `circt-opt`).

Current failing example to demonstrate:

```mlir
firrtl.circuit "ClockProbe" {
firrtl.module @ClockProbe(in %in: !firrtl.clock, out %out: !firrtl.clock) attributes {convention = #firrtl} {
%0 = firrtl.ref.send %in : !firrtl.clock
%1 = firrtl.ref.resolve %0 : !firrtl.probe
firrtl.strictconnect %out, %1 : !firrtl.clock
}
}
```

Which presently errors out when running `circt-opt --firrtl-lower-xmr`:
```
LLVM ERROR: can't create type 'circt::seq::ClockType' because storage uniquer isn't initialized: the dialect was likely not loaded, or the type wasn't added with addTypes<...>() in the Dialect::initialize() method.
PLEASE submit a bug report to https://github.com/llvm/circt and include the crash backtrace.
Stack dump:
0. Program arguments: ./build/bin/circt-opt --firrtl-lower-xmr ./clock-probe.mlir
```

Start by inspecting the dependentDialects handling in LowerXMR and LowerToHW, then reproduce the failure with circt-opt --firrtl-lower-xmr and the provided ClockProbe MLIR. Done means the example no longer reports an uninitialized Seq dialect type and the lowering completes successfully.

Written by the indexing model from the issue text.