Move test to "presubmit" group, it's already included like this in another location

Change-Id: I4bebf86535ff3533094d51de02c08e5b3b8fdf8e
Test: presubmit
Bug: 270214959
diff --git a/drm/TEST_MAPPING b/drm/TEST_MAPPING
index 3642898..b2d4d6e 100644
--- a/drm/TEST_MAPPING
+++ b/drm/TEST_MAPPING
@@ -1,5 +1,5 @@
 {
-  "presubmit-large": [
+  "presubmit": [
     // The following tests validate codec and drm path.
     {
       "name": "GtsMediaTestCases",