Switch to new KeyChain where possible

signed_interest::POS_RANDOM_VAL and signed_interest::POS_TIMESTAMP
constants are deprecated. Use command_interest:: equivalents instead.

This commit also includes fix for the backward compatibility regression
due to move of deprecated TPM/PublicInfo header files.

Change-Id: Ic3b008fc6758f3ac83f191158b6ac0789483f90d
Refs: #3098
diff --git a/tests/unit-tests/security/conf/checker.t.cpp b/tests/unit-tests/security/conf/checker.t.cpp
index 493ac16..f43231b 100644
--- a/tests/unit-tests/security/conf/checker.t.cpp
+++ b/tests/unit-tests/security/conf/checker.t.cpp
@@ -33,7 +33,7 @@
 
 BOOST_AUTO_TEST_SUITE(Security)
 BOOST_AUTO_TEST_SUITE(Conf)
-BOOST_FIXTURE_TEST_SUITE(TestChecker, IdentityManagementFixture)
+BOOST_FIXTURE_TEST_SUITE(TestChecker, IdentityManagementV1Fixture)
 
 BOOST_AUTO_TEST_CASE(CustomizedCheckerTest1)
 {