lpc: add missing headers

Add missing headers to the lpc files.

Change-Id: I9228e26463f8316f27f3c5e0cc59eed2ed71597b
Signed-off-by: Patrick Venture <venture@google.com>
diff --git a/lpc_nuvoton.cpp b/lpc_nuvoton.cpp
index ebc210c..80c3245 100644
--- a/lpc_nuvoton.cpp
+++ b/lpc_nuvoton.cpp
@@ -26,6 +26,7 @@
 #include <cstdio>
 #include <memory>
 #include <utility>
+#include <vector>
 
 namespace blobs
 {