Add device settings service and aidl definition

Bug: 343317785
Test: run atest for all new tests
Flag: EXEMPT it's not used in any places for now
Change-Id: Iac5c96c653f149b9fd02edd1209f2e2e0dc94d1e
diff --git a/packages/SettingsLib/Android.bp b/packages/SettingsLib/Android.bp
index d6cbf2a..0cb85d8 100644
--- a/packages/SettingsLib/Android.bp
+++ b/packages/SettingsLib/Android.bp
@@ -64,6 +64,7 @@
     srcs: [
         "src/**/*.java",
         "src/**/*.kt",
+        "src/**/I*.aidl",
     ],
 }