sys-libs/libsepol: multiple CVE fixes

BUG=b/335530805,b/336056571,b/336171692,b/336172170
TEST=presubmit
RELEASE_NOTE=Fixed CVE-2021-36084, CVE-2021-36085, CVE-2021-36086, CVE-2021-36087 in sys-libs/libsepol.

cos-patch: lts-refresh
Change-Id: I4ce84f72e9e26bfd984d6e1fc7a0b93f7d3507d4
Reviewed-on: https://cos-review.googlesource.com/c/third_party/overlays/portage-stable/+/70197
Reviewed-by: Kevin Berry <kpberry@google.com>
Tested-by: Cusky Presubmit Bot <presubmit@cos-infra-prod.iam.gserviceaccount.com>
Tested-by: Oleksandr Tymoshenko <ovt@google.com>
6 files changed