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/development/ide/eclipse/.classpath b/development/ide/eclipse/.classpath
index 3f11bd1..661b78f 100644
--- a/development/ide/eclipse/.classpath
+++ b/development/ide/eclipse/.classpath
@@ -21,6 +21,7 @@
     <classpathentry kind="src" path="cts/tests/tests/database/src"/>
     <classpathentry kind="src" path="cts/tests/tests/dpi/src"/>
     <classpathentry kind="src" path="cts/tests/tests/dpi2/src"/>
+    <classpathentry kind="src" path="cts/tests/tests/drm/src"/>
     <classpathentry kind="src" path="cts/tests/tests/example/src"/>
     <classpathentry kind="src" path="cts/tests/tests/gesture/src"/>
     <classpathentry kind="src" path="cts/tests/tests/graphics/src"/>