Remove connectivity-tiramisu-updatable-sources

The filegroup is now unnecessary as files are all in the service-t/src
directory.

This change allows building all sources including ethernet by
referencing src/**. This is done by using a general filegroup
service-connectivity-tiramisu-sources, so that branches that cannot
build the T+ code can change its contents without introducing merge
conflicts in the rest of the build rules.

Also change visibility rules to allow building the moved ethernet code,
and add a filegroup to allow building its tests.

Bug: 222234190
Test: TH
Ignore-AOSP-First: Move with history done per-branch
Merged-In: I06e2568e5e01d855783383552d1b0d7732cefbe0
Change-Id: I8f23a45800b1086cc5a765fd24d734ca82c339a8
diff --git a/tests/ethernet/Android.bp b/tests/ethernet/Android.bp
index 6cfebdc..8342490 100644
--- a/tests/ethernet/Android.bp
+++ b/tests/ethernet/Android.bp
@@ -24,8 +24,7 @@
     name: "EthernetServiceTests",
 
     srcs: [
-        ":ethernet-service-updatable-sources",
-        ":services.connectivity-ethernet-sources",
+        ":ethernet-service-test-sources",
         "java/**/*.java",
     ],