Fix style around header inclusion

This change is to be in sync with other libraries in system/core.

External headers are included via #include <...> rather
than #include "...", which is for headers from the current library.

Bug: 130388701
Test: build & pass presubmit tests

Change-Id: Ifb87ebaea1b0ff95e2e79352e6a42e3bfd949c52
diff --git a/libnativeloader/library_namespaces.h b/libnativeloader/library_namespaces.h
index 103cfac..fd46cdc 100644
--- a/libnativeloader/library_namespaces.h
+++ b/libnativeloader/library_namespaces.h
@@ -25,8 +25,7 @@
 #include <list>
 #include <string>
 
-#include "jni.h"
-#include "utils.h"
+#include <jni.h>
 
 namespace android::nativeloader {