board: ge: make VPD code common

The VPD data is used on a number of GE products. Move the parsing code to
a common location so that we can share this code.

Signed-off-by: Martyn Welch <martyn.welch@collabora.co.uk>
Acked-by: Stefano Babic <sbabic@denx.de>
diff --git a/board/ge/common/vpd_reader.h b/board/ge/common/vpd_reader.h
new file mode 100644
index 0000000..4abba8f
--- /dev/null
+++ b/board/ge/common/vpd_reader.h
@@ -0,0 +1,17 @@
+/*
+ * Copyright 2016 General Electric Company
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include "common.h"
+
+/*
+ * Read VPD from given data, verify content, and call callback
+ * for each vital product data block.
+ *
+ * Returns Non-zero on error.  Negative numbers encode errno.
+ */
+int vpd_reader(size_t size, u8 *data, void *userdata,
+	       int (*fn)(void *userdata, u8 id, u8 version, u8 type,
+			 size_t size, u8 const *data));