Add the DRM Tests to CTS

Add the DRM test packages to the test case list, so that they can run
via the cts command. Add the source path to the Eclipse classpath.

Change-Id: Ieb5e9572b0f08ed77c5f7f0bcf39469ad4b96645
diff --git a/CtsTestCaseList.mk b/CtsTestCaseList.mk
index 9e3f0a5..6090659 100644
--- a/CtsTestCaseList.mk
+++ b/CtsTestCaseList.mk
@@ -37,6 +37,7 @@
 	CtsDatabaseTestCases \
 	CtsDpiTestCases \
 	CtsDpiTestCases2 \
+	CtsDrmTestCases \
 	CtsExampleTestCases \
 	CtsGestureTestCases \
 	CtsGraphicsTestCases \