Package robolectric tests for tradefed

Package a slightly modified copy of the robolectric tests with
the dependencies statically included into the testcases directory
and into a robolectric-tests.zip.

Test: m robolectric-tests
Change-Id: I73f51727695136d2a849d36af1683e93f7e156a3
diff --git a/tradefed/config.go b/tradefed/config.go
index 34195c3..f7e8349 100644
--- a/tradefed/config.go
+++ b/tradefed/config.go
@@ -33,6 +33,7 @@
 	pctx.SourcePathVariable("PythonBinaryHostTestConfigTemplate", "build/make/core/python_binary_host_test_config_template.xml")
 	pctx.SourcePathVariable("RustDeviceTestConfigTemplate", "build/make/core/rust_device_test_config_template.xml")
 	pctx.SourcePathVariable("RustHostTestConfigTemplate", "build/make/core/rust_host_test_config_template.xml")
+	pctx.SourcePathVariable("RobolectricTestConfigTemplate", "build/make/core/robolectric_test_config_template.xml")
 	pctx.SourcePathVariable("ShellTestConfigTemplate", "build/make/core/shell_test_config_template.xml")
 
 	pctx.SourcePathVariable("EmptyTestConfig", "build/make/core/empty_test_config.xml")