[PM] Add PackageInstaller CUJ test case (38/N)

Add CtsPackageInstallerCUJDeviceAdminTestCases and
CtsPackageInstallerCUJMultiUsersTestCases into presubmit in
TEST_MAPPING

Flag: TEST_ONLY
Bug: 332323134
Test: atest -p frameworks/base/core/java/android/content/pm/TEST_MAPPING:presubmit
Test: atest -p frameworks/base/services/core/java/com/android/server/pm/TEST_MAPPING:presubmit
Test: atest -p frameworks/base/packages/PackageInstaller/TEST_MAPPING:presubmit
Change-Id: I0df5ce0f3e9d4b2865b24d8e876dc640b5b03f17