dump-extensions: openpower: add header for uint32_t

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: I1ab8672c475d209ee99058734d5ceee6c79a7cb2
diff --git a/dump-extensions/openpower-dumps/op_dump_consts.hpp b/dump-extensions/openpower-dumps/op_dump_consts.hpp
index 4ddd567..fd9f584 100644
--- a/dump-extensions/openpower-dumps/op_dump_consts.hpp
+++ b/dump-extensions/openpower-dumps/op_dump_consts.hpp
@@ -1,3 +1,5 @@
 #pragma once
 
+#include <cstdint>
+
 constexpr uint32_t INVALID_SOURCE_ID = 0xFFFFFFFF;