selftests/arm64: fix spelling errors in comments

Fix two spelling mistakes in arm64 selftest comments:
  - "whcih" -> "which" (arm64/gcs/libc-gcs.c)
  - "resutls" -> "results" (arm64/pauth/pac.c)

Signed-off-by: Wang Yan <wangyan01@kylinos.cn>
Signed-off-by: Will Deacon <will@kernel.org>
2 files changed