[RFCLAT#12] Add apex_available and min_sdk_version to clatd

Used to package clatd binary into tethering apex.

Bug: 212345928
Test: atest clatd_test
Change-Id: I94f7272e088e8b16fa906585a8dfe430c6ba4631
diff --git a/Android.bp b/Android.bp
index 8d51b49..aca8481 100644
--- a/Android.bp
+++ b/Android.bp
@@ -85,6 +85,12 @@
     sanitize: {
         memtag_heap: true,
     },
+
+    apex_available: [
+        "com.android.tethering",
+        "//apex_available:platform",
+    ],
+    min_sdk_version: "30",
 }
 
 // Unit tests.