API fix for casadm standby init

Cache line size parameter is handled inconsistently in standby init and
start cache methods.

This patch fixes this inconsistency so both methods accept a proper
CacheLineSize object.

Some of the existing tests needed fixing as well, as included in this
patch.

Signed-off-by: Krzysztof Majzerowicz-Jaszcz <krzysztof.majzerowicz-jaszcz@intel.com>

test/functional/tests/fault_injection/test_fault_injection_standby.py

@@ -53,7 +53,7 @@ def test_activate_corrupted():
         with TestRun.step("Prepare standby instance"):
             cache = casadm.standby_init(
                 cache_dev=cache_device,
-                cache_line_size=int(cls.value.value / Unit.KibiByte.value),
+                cache_line_size=cls,
                 cache_id=cache_id,
                 force=True,
             )
@@ -154,7 +154,7 @@ def test_activate_corrupted_after_dump():
         with TestRun.step("Prepare standby instance"):
             cache = casadm.standby_init(
                 cache_dev=cache_device,
-                cache_line_size=int(cls.value.value / Unit.KibiByte.value),
+                cache_line_size=cls,
                 cache_id=cache_id,
                 force=True,
             )

test/functional/tests/fault_injection/test_fault_injection_standby_core.py

@@ -1,5 +1,5 @@
 #
-# Copyright(c) 2019-2021 Intel Corporation
+# Copyright(c) 2019-2022 Intel Corporation
 # SPDX-License-Identifier: BSD-3-Clause
 #
 
@@ -62,7 +62,7 @@ def test_activate_neg_cache_id():
     ):
         standby_cache = casadm.standby_init(
             standby_dev,
-            cache_line_size=int(cls.value.value / Unit.KibiByte.value),
+            cache_line_size=cls,
             cache_id=standby_cache_id,
             force=True,
         )