net: fix ESP header byte ordering definition

ESP header is defined in the RFC2406 [1] as Big Endian fields it should use
the corresponding types in DPDK as well.

[1] https://tools.ietf.org/html/rfc2406

Fixes: d4b684f719 ("net: add ESP header to generic flow steering")
Cc: stable@dpdk.org

Signed-off-by: Nelio Laranjeiro <nelio.laranjeiro@6wind.com>
Acked-by: Olivier Matz <olivier.matz@6wind.com>

lib/librte_net/rte_esp.h

@@ -49,8 +49,8 @@ extern "C" {
  * ESP Header
  */
 struct esp_hdr {
-	uint32_t spi;  /**< Security Parameters Index */
-	uint32_t seq;  /**< packet sequence number */
+	rte_be32_t spi;  /**< Security Parameters Index */
+	rte_be32_t seq;  /**< packet sequence number */
 } __attribute__((__packed__));
 
 #ifdef __cplusplus