selftests: seccomp: Fix "performace" to "performance"

Fix misspelling reported by codespell

Signed-off-by: Sumanth Gavini <sumanth.gavini@yahoo.com>
Link: https://lore.kernel.org/r/20250517011725.1149510-1-sumanth.gavini@yahoo.com
Signed-off-by: Kees Cook <kees@kernel.org>

Author: sumanth-gavini

tools/testing/selftests/seccomp/seccomp_benchmark.c

@@ -1,6 +1,6 @@
 /*
  * Strictly speaking, this is not a test. But it can report during test
- * runs so relative performace can be measured.
+ * runs so relative performance can be measured.
  */
 #define _GNU_SOURCE
 #include <assert.h>