samples: ipsp: increase the maximum multicast addr count

This sample is trying to register four multicast addesses:

uart:~$ net iface
...
IPv6 multicast addresses (max 8):
        ff02::1
        ff02::1:ff01:c41e
        ff02::1:ff00:1
        ff02::1

Increasing CONFIG_NET_IF_MCAST_IPV6_ADDR_COUNT to 4 to make neighbor
discovery work correctly.

Signed-off-by: Fabio Baltieri <[email protected]>

Author: fabiobaltieri

samples/bluetooth/ipsp/prj.conf

@@ -18,7 +18,7 @@ CONFIG_NET_PKT_TX_COUNT=10
 CONFIG_NET_BUF_RX_COUNT=20
 CONFIG_NET_BUF_TX_COUNT=20
 CONFIG_NET_IF_UNICAST_IPV6_ADDR_COUNT=3
-CONFIG_NET_IF_MCAST_IPV6_ADDR_COUNT=2
+CONFIG_NET_IF_MCAST_IPV6_ADDR_COUNT=4
 CONFIG_NET_MAX_CONTEXTS=6
 
 CONFIG_NET_CONFIG_AUTO_INIT=y

samples/bluetooth/ipsp/prj_dbg.conf

@@ -20,7 +20,7 @@ CONFIG_NET_PKT_TX_COUNT=10
 CONFIG_NET_BUF_RX_COUNT=20
 CONFIG_NET_BUF_TX_COUNT=20
 CONFIG_NET_IF_UNICAST_IPV6_ADDR_COUNT=3
-CONFIG_NET_IF_MCAST_IPV6_ADDR_COUNT=2
+CONFIG_NET_IF_MCAST_IPV6_ADDR_COUNT=4
 CONFIG_NET_MAX_CONTEXTS=6
 
 CONFIG_NET_SHELL=y

samples/bluetooth/ipsp/prj_zep1656.conf

@@ -19,7 +19,7 @@ CONFIG_NET_PKT_TX_COUNT=10
 CONFIG_NET_BUF_RX_COUNT=20
 CONFIG_NET_BUF_TX_COUNT=20
 CONFIG_NET_IF_UNICAST_IPV6_ADDR_COUNT=3
-CONFIG_NET_IF_MCAST_IPV6_ADDR_COUNT=2
+CONFIG_NET_IF_MCAST_IPV6_ADDR_COUNT=4
 CONFIG_NET_MAX_CONTEXTS=6
 
 CONFIG_NET_CONFIG_AUTO_INIT=y