board: ge: bx50v3: set eth0 MAC address

Define i2c mux configuration.  Add new vpd_reader which is used to read
vital product data.  Read VPD from EEPROM and set eth0 MAC address.

Signed-off-by: Ian Ray <ian.ray@ge.com>
Signed-off-by: Jose Alarcon <jose.alarcon@ge.com>
diff --git a/board/ge/bx50v3/vpd_reader.h b/board/ge/bx50v3/vpd_reader.h
new file mode 100644
index 0000000..efa172a
--- /dev/null
+++ b/board/ge/bx50v3/vpd_reader.h
@@ -0,0 +1,25 @@
+/*
+ * 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,
+	uint8_t * data,
+	void * userdata,
+	int (*fn)(
+	    void * userdata,
+	    uint8_t id,
+	    uint8_t version,
+	    uint8_t type,
+	    size_t size,
+	    uint8_t const * data));