Update presubmit mapping for MediaProjection & related

The desired end state:
1) run unit tests when anything in `android.media.projection` changes
2) TODO - tracked by b/265302522 - run CTS tests when anything in `android.media.projection` changes

Tested with "test-mapping" command; runs all presubmit tests in the given directory and parent folders.

Bug: 245745197
Test: atest --test-mapping media/java/android/media/projection:presubmit
Change-Id: Iaffc209af5ae9433455f184ddbacfb41b6f6094d

media/java/android/media/projection/TEST_MAPPING

@@ -0,0 +1,18 @@
+{
+  "presubmit": [
+    {
+      "name": "MediaProjectionTests",
+      "options": [
+        {
+          "exclude-annotation": "android.platform.test.annotations.FlakyTest"
+        },
+        {
+          "exclude-annotation": "androidx.test.filters.FlakyTest"
+        },
+        {
+          "exclude-annotation": "org.junit.Ignore"
+        }
+      ]
+    }
+  ]
+}

media/tests/projection/TEST_MAPPING

@@ -1,13 +0,0 @@
-{
-    "presubmit": [
-        {
-            "name": "FrameworksServicesTests",
-            "options": [
-                {"include-filter": "android.media.projection.mediaprojectiontests"},
-                {"exclude-annotation": "android.platform.test.annotations.FlakyTest"},
-                {"exclude-annotation": "androidx.test.filters.FlakyTest"},
-                {"exclude-annotation": "org.junit.Ignore"}
-            ]
-        }
-    ]
-}

services/core/java/com/android/server/media/projection/TEST_MAPPING

@@ -0,0 +1,18 @@
+{
+  "presubmit": [
+    {
+      "name": "MediaProjectionTests",
+      "options": [
+        {
+          "exclude-annotation": "android.platform.test.annotations.FlakyTest"
+        },
+        {
+          "exclude-annotation": "androidx.test.filters.FlakyTest"
+        },
+        {
+          "exclude-annotation": "org.junit.Ignore"
+        }
+      ]
+    }
+  ]
+}