Add min_sdk_version for ART module.

Bug: 180399951
Test: m
Change-Id: I648e2fc05a2f3d2acd3f2258c0a259f2aef44b33
diff --git a/JavaLibrary.bp b/JavaLibrary.bp
index db3e75a..e5d1e1f 100644
--- a/JavaLibrary.bp
+++ b/JavaLibrary.bp
@@ -146,6 +146,7 @@
             "-Xep:ConstantOverflow:WARN", // Known constant overflow in SplittableRandom
         ],
     },
+    min_sdk_version: "31",
 }
 
 //