Set min_sdk_version to be part of mainline modules

Modules contributing mainline modules (APK/APEX) should set
min_sdk_version as well as apex_available.

For now setting min_sdk_version doesn't change build outputs.
But build-time checks will be added soon.

Bug: 152655956
Test: m
Change-Id: Ie6912167932812afb6e5f1ef5325ce7997cd04ae
diff --git a/common/aidl/Android.bp b/common/aidl/Android.bp
index 0731230..9ea4cdf 100644
--- a/common/aidl/Android.bp
+++ b/common/aidl/Android.bp
@@ -17,6 +17,13 @@
         cpp: {
             enabled: false,
         },
+        ndk: {
+            apex_available: [
+                "//apex_available:platform",
+                "com.android.media.swcodec",
+            ],
+            min_sdk_version: "29",
+        },
     },
     versions: ["1"],
 }