[top] Update stale comment in testplan

Fix #15305

Signed-off-by: Michael Schaffner <msf@google.com>
diff --git a/hw/top_earlgrey/dv/chip_sim_cfg.hjson b/hw/top_earlgrey/dv/chip_sim_cfg.hjson
index 9fac6f4..0dc8fd2 100644
--- a/hw/top_earlgrey/dv/chip_sim_cfg.hjson
+++ b/hw/top_earlgrey/dv/chip_sim_cfg.hjson
@@ -231,12 +231,12 @@
       run_opts: ["+stub_cpu=1"]
     }
     {
-      // Append stub cpu mode to csr_tests_mode, run with 20 reseeds.
+      // Append stub cpu mode to csr_tests_mode.
       name: csr_tests_mode
       en_run_modes: ["stub_cpu_mode"]
     }
     {
-      // Append stub cpu mode to mem_tests_mode, run with 20 reseeds.
+      // Append stub cpu mode to mem_tests_mode.
       name: mem_tests_mode
       en_run_modes: ["stub_cpu_mode"]
       reseed: 20