build(deps): bump third_party/litex_vexriscv_smp
build(deps): bump third_party/litex_vexriscv_smp

Bumps [third_party/litex_vexriscv_smp](https://github.com/enjoy-digital/litex_vexriscv_smp) from `ea805a5` to `cd5ebcf`.
- [Release notes](https://github.com/enjoy-digital/litex_vexriscv_smp/releases)
- [Commits](https://github.com/enjoy-digital/litex_vexriscv_smp/compare/ea805a510920f3814ca16fa792bc09758c5b4501...cd5ebcf335d927dfc92816066e2554fbac5de781)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
SymbiFlow/fpga-tool-perf,SymbiFlow/fpga-tool-perf,SymbiFlow/fpga-tool-perf,SymbiFlow/fpga-tool-perf