#0: SFPI update (#18456)

### Ticket
#14597
tenstorrent/sfpi#29
#18340

### Problem description
* New Blackhole feature -- `sfpi::rand()`
* `spushft2` bug fixes

### What's changed
See https://github.com/tenstorrent/sfpi/releases/tag/v6.4.0

ETA: This PR implicitly includes
#18313
(https://github.com/tenstorrent/sfpi/releases/tag/v6.3.0)

### Checklist
- [YES] [All post
commit](https://github.com/tenstorrent/tt-metal/actions/workflows/all-post-commit-workflows.yaml)
CI passes
- [YES] [Blackhole Post
commit](https://github.com/tenstorrent/tt-metal/actions/workflows/blackhole-post-commit.yaml)
CI passes (if applicable)
- [ ] [Model
regression](https://github.com/tenstorrent/tt-metal/actions/workflows/perf-models.yaml)
CI passes (if applicable)
- [ ] [Device performance
regression](https://github.com/tenstorrent/tt-metal/actions/workflows/perf-device-models.yaml)
CI passes (if applicable)
- [ ] **(For models and ops writers)** Full [new models
tests](https://github.com/tenstorrent/tt-metal/actions/workflows/full-new-models-suite.yaml)
CI passes (if applicable)
- [YES] New/Existing tests provide coverage for changes

tt_metal/hw/CMakeLists.txt

@@ -21,8 +21,8 @@ set(TYPES
 
 include(FetchContent)
 set(SFPI_x86_64_Linux_RELEASE
-    "v6.2.0/sfpi-release.tgz"
-    "c546b57c3161b06d03de7473c4add5e5"
+    "v6.4.0/sfpi-release.tgz"
+    "979309b710e825b459e52b52c470c658"
 )
 if(DEFINED SFPI_${CMAKE_HOST_SYSTEM_PROCESSOR}_${CMAKE_HOST_SYSTEM_NAME}_RELEASE)
     set(SFPI_RELEASE "${SFPI_${CMAKE_HOST_SYSTEM_PROCESSOR}_${CMAKE_HOST_SYSTEM_NAME}_RELEASE}")