[devices] Replace WARN with WARNING

We are transitioning from DDK_LOG_WARN to DDK_LOG_WARNING to better
align with syslog.

Change-Id: Iebe5fa9064c4cf51c7db6b76b3a5811ca1e2b0ac
diff --git a/services/server/env/fuchsia/pvr_debug.cc b/services/server/env/fuchsia/pvr_debug.cc
index 32bca42..8775e72 100644
--- a/services/server/env/fuchsia/pvr_debug.cc
+++ b/services/server/env/fuchsia/pvr_debug.cc
@@ -113,7 +113,7 @@
 	}
 	else if (ui32DebugLevel & DBGPRIV_WARNING)
 	{
-		log_level = DDK_LOG_WARN;
+		log_level = DDK_LOG_WARNING;
 	}
 	else
 	{