style(cuda): apply clang-format to DSV4 DeepGEMM and MoE sources
Whitespace only, no functional change: `git diff -w` against the previous
commit is empty.
These files were left non-compliant by earlier DSV4 DeepGEMM and MXFP4 GEMV
work. clang-format realigns continuation lines in the `Fc1Kernel`/`Fc2Kernel`
`decltype` template argument lists, the `ApplyInterleavedSwiGLU` parameter
lists in both the header and the definition, the `LogFp4MoeExpertOverlap`
launch arguments, the `log_routed_experts` declaration indent, and the
`active_runner` conditional operands.
`lintrunner --take CLANGFORMAT` now reports no issues for all five files.