net: lwip: enable IP_FRAG and IP_REASSEMBLY

Enable IP_FRAG and IP_REASSEMBLY to allow packets larger than MTU.

Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Reviewed-by: Jerome Forissier <jerome.forissier@linaro.org>
Acked-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
diff --git a/lib/lwip/u-boot/lwipopts.h b/lib/lwip/u-boot/lwipopts.h
index edac74f..1818a44 100644
--- a/lib/lwip/u-boot/lwipopts.h
+++ b/lib/lwip/u-boot/lwipopts.h
@@ -72,8 +72,8 @@
 
 #define IP_FORWARD                      0
 #define IP_OPTIONS_ALLOWED              1
-#define IP_REASSEMBLY                   0
-#define IP_FRAG                         0
+#define IP_REASSEMBLY                   1
+#define IP_FRAG                         1
 #define IP_REASS_MAXAGE                 3
 #define IP_REASS_MAX_PBUFS              4
 #define IP_FRAG_USES_STATIC_BUF         0