Revert "Revert "device-tests: As a dependency to tests""

This reverts commit df086140a8835b35a12f29b3ac4c92f859040b93.

CQ-DEPEND=CL:365575
Bug: 35386840
Test: None

Change-Id: I17dc00ed64e220c5ce532386da1a1bc15cbfc439
diff --git a/core/tasks/device-tests.mk b/core/tasks/device-tests.mk
index 731937f..cba83cb 100644
--- a/core/tasks/device-tests.mk
+++ b/core/tasks/device-tests.mk
@@ -25,3 +25,5 @@
 
 device-tests: $(device-tests-zip)
 $(call dist-for-goals, device-tests, $(device-tests-zip))
+
+tests: device-tests