net: ipv6: Fix lladdr state set to a wrong value

The line below is wrong and useless:
	lladdr->state = ADDR_AUTOCONF;

Indeed the three possible values for the state attribute are:
ADDR_TENTATIVE, ADDR_PREFERRED or ADDR_DEPRECATED. ADDR_AUTOCONF
is one possible value for the type attribute.

Moreover uip_ds6_set_lladdr already set the type attribute to
ADDR_AUTOCONF (this done through the call to the function
uip_ds6_addr_add).

Therefore this issue has been simply fixed by removing the line.

Change-Id: I432b7bb6a6a858264bb634f2e4d253f55acbbd5b
Signed-off-by: Sebastien Griffoul <[email protected]>

net/ip/net_core.c

@@ -1009,8 +1009,6 @@ int net_set_mac(uint8_t *mac, uint8_t len)
 		NET_DBG("Tentative link-local IPv6 address ");
 		PRINT6ADDR(&lladdr->ipaddr);
 		PRINTF("\n");
-
-		lladdr->state = ADDR_AUTOCONF;
 	}
 #else
 	memcpy(&uip_lladdr, mac, len);