Resolve CtsSecurityTest issues introduced with CtsDeviceInfo

The CtsSecurityTestCases AndroidTest.xml was updated to include
the intallation of CtsDeviceInfo before the tests are run. The
installation of this APK causes the following issues:

1. When the APK is installed in instant mode the installation fails
because the targetSdkVersion for this APK is 23; instant apps require
the targetSdkVersion be set to a minimum of 26.
2. Since this APK is signed with a test key the PkgSignatureTest
reports this package as installed with a known key.

This commit addresses these issues by not running in instant mode and
adding the CtsDeviceInfo's package to the Set of well known packages in
PackageSignatureTest since it is expected to be installed during the
test.

Bug: 177565040
Test: atest --instant PackageSignatureTest
Test: atest PackageSignatureTest
Change-Id: I3763b5883b2ee395fbbea7c92d937bc38e8dbfa7
2 files changed