ART: Fix alloc-dealloc mismatch

Mark type as array.

Bug: 31098551
Test: m test-art-host
Change-Id: Ia27a997e838a408cc68f0d9fe58734155e709e85
diff --git a/runtime/jit/offline_profiling_info.h b/runtime/jit/offline_profiling_info.h
index 0b26f9b..fdca078 100644
--- a/runtime/jit/offline_profiling_info.h
+++ b/runtime/jit/offline_profiling_info.h
@@ -152,7 +152,7 @@
     uint8_t* Get() { return storage_.get(); }
 
    private:
-    std::unique_ptr<uint8_t> storage_;
+    std::unique_ptr<uint8_t[]> storage_;
     uint8_t* ptr_current_;
     uint8_t* ptr_end_;
   };