Honor org.junit.Ignore annotation.

Bug: 151135460
Test: added @Ignore to a test and checked atest didn't run it
Change-Id: Ied98fc49a85eccc5452ba8e07992a836f6fc11c5
diff --git a/packages/SystemUI/TEST_MAPPING b/packages/SystemUI/TEST_MAPPING
index cff958f..c036b04 100644
--- a/packages/SystemUI/TEST_MAPPING
+++ b/packages/SystemUI/TEST_MAPPING
@@ -12,6 +12,9 @@
             "include-annotation": "android.platform.test.scenario.annotation.Scenario"
         },
         {
+            "exclude-annotation": "org.junit.Ignore"
+        },
+        {
             "exclude-annotation": "androidx.test.filters.FlakyTest"
         }
       ]
@@ -28,6 +31,9 @@
             "include-annotation": "android.platform.test.scenario.annotation.Scenario"
         },
         {
+            "exclude-annotation": "org.junit.Ignore"
+        },
+        {
             "exclude-annotation": "androidx.test.filters.FlakyTest"
         },
         {