Add CTS accounts tests to CTS makefile.

Change-Id: If7d87e2deed2036536ad852c382dca0e8bbad87b
diff --git a/core/tasks/cts.mk b/core/tasks/cts.mk
index 4888fc7..917c5dc 100644
--- a/core/tasks/cts.mk
+++ b/core/tasks/cts.mk
@@ -65,6 +65,7 @@
 CTS_CASE_LIST := \
 	TestDeviceSetup \
 	CtsTestStubs \
+	CtsAccountManagerTestCases \
 	CtsAppTestCases \
 	CtsBluetoothTestCases \
 	CtsContentTestCases \