Merge "Expose Build.VERSION.FIRST_SDK_INT as module-lib API"

core/api/module-lib-current.txt

@@ -52,6 +52,10 @@ package android.os {
     method public final void markVintfStability();
   }
 
+  public static class Build.VERSION {
+    field public static final int FIRST_SDK_INT;
+  }
+
   public interface Parcelable {
     method public default int getStability();
   }

core/java/android/os/Build.java

@@ -317,6 +317,7 @@ public class Build {
          * @see #SDK_INT
          * @hide
          */
+        @SystemApi(client = SystemApi.Client.MODULE_LIBRARIES)
         @TestApi
         public static final int FIRST_SDK_INT = SystemProperties
                 .getInt("ro.product.first_api_level", 0);