Benchmark Enhancements: Update Docs for sai_bench and bcm_bench

Summary:
Updating test case names for `sai_bench` and `bcm_bench` in various documentation files.

Found list of these files through `zbgs bcm_bench` and `zbgs sai_bench`.

Reviewed By: zechengh09

Differential Revision: D61296288

fbshipit-source-id: 7c4f752903f3787a9738ae22f0c5ebfdaa572079

fboss/agent/wiki/concepts/features/pktio_benchmarks_th3.rst

@@ -12,14 +12,14 @@ Steps
 Native SDK tx slow path and rx slow path:
 .. code-block:: sh
 
-  netcastle --team bcm_bench --basset-query fboss:wedge400/asic=tomahawk3 --regex tx_slow_path_rate
-  netcastle --team bcm_bench --basset-query fboss:wedge400/asic=tomahawk3 --regex rx_slow_path_rate
+  netcastle --team bcm_bench --basset-query fboss:wedge400/asic=tomahawk3 --regex runTxSlowPathBenchmark
+  netcastle --team bcm_bench --basset-query fboss:wedge400/asic=tomahawk3 --regex RxSlowPathBenchmark
 
 Sai tx slow path and rx slow path:
 .. code-block:: sh
 
-  netcastle --team sai_bench --basset-query fboss:wedge400/asic=tomahawk3 --regex tx_slow_path_rate
-  netcastle --team sai_bench --basset-query fboss:wedge400/asic=tomahawk3 --regex rx_slow_path_rate
+  netcastle --team sai_bench --basset-query fboss:wedge400/asic=tomahawk3 --regex runTxSlowPathBenchmark
+  netcastle --team sai_bench --basset-query fboss:wedge400/asic=tomahawk3 --regex RxSlowPathBenchmark
 
 For native SDK, use command line argument `--use_pktio=false` to disable pktio. For sai, modify the config file to set 'pktio_driver_type: 0'.
 

fboss/agent/wiki/static_docs/docs/Features/pktio-benchmarks-th3.mdx

@@ -9,12 +9,12 @@ This wiki contains the performance comparison of Rx/Tx slow path rate on TH3. Th
 
 Native SDK tx slow path and rx slow path:
 ```
-netcastle –team bcm_bench –basset-query fboss:wedge400/asic=tomahawk3 –regex tx_slow_path_rate netcastle –team bcm_bench –basset-query fboss:wedge400/asic=tomahawk3 –regex rx_slow_path_rate
+netcastle –team bcm_bench –basset-query fboss:wedge400/asic=tomahawk3 –regex runTxSlowPathBenchmark netcastle –team bcm_bench –basset-query fboss:wedge400/asic=tomahawk3 –regex RxSlowPathBenchmark
 ```
 
 Sai tx slow path and rx slow path:
 ```
-netcastle –team sai_bench –basset-query fboss:wedge400/asic=tomahawk3 –regex tx_slow_path_rate netcastle –team sai_bench –basset-query fboss:wedge400/asic=tomahawk3 –regex rx_slow_path_rate
+netcastle –team sai_bench –basset-query fboss:wedge400/asic=tomahawk3 –regex runTxSlowPathBenchmark netcastle –team sai_bench –basset-query fboss:wedge400/asic=tomahawk3 –regex RxSlowPathBenchmark
 ```
 
 For native SDK, use command line argument `--use_pktio=false` to disable pktio. For sai, modify the config file to set `pktio_driver_type: 0`.