test: fix pydoc issues for EFI tests

Fix issues reported by pydocstyle.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Acked-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
diff --git a/test/py/tests/test_efi_secboot/conftest.py b/test/py/tests/test_efi_secboot/conftest.py
index 65cde7a..30ff702 100644
--- a/test/py/tests/test_efi_secboot/conftest.py
+++ b/test/py/tests/test_efi_secboot/conftest.py
@@ -2,7 +2,7 @@
 # Copyright (c) 2019, Linaro Limited
 # Author: AKASHI Takahiro <takahiro.akashi@linaro.org>
 
-""" Fixture for UEFI secure boot test """
+"""Fixture for UEFI secure boot test."""
 
 from subprocess import call, check_call, CalledProcessError
 import pytest
@@ -132,7 +132,9 @@
 
 @pytest.fixture(scope='session')
 def efi_boot_env_intca(request, u_boot_config):
-    """Set up a file system to be used in UEFI secure boot test
+    """Set up file system for secure boot test.
+
+    Set up a file system to be used in UEFI secure boot test
     of intermediate certificates.
 
     Args:
diff --git a/test/py/tests/test_efi_secboot/defs.py b/test/py/tests/test_efi_secboot/defs.py
index b7a2a11..6a2317e 100644
--- a/test/py/tests/test_efi_secboot/defs.py
+++ b/test/py/tests/test_efi_secboot/defs.py
@@ -1,5 +1,7 @@
 # SPDX-License-Identifier:      GPL-2.0+
 
+"""Constants used for secure boot test."""
+
 # Owner guid
 GUID = '11111111-2222-3333-4444-123456789abc'