Merge pull request adafruit#10166 from eightycc/issue-9127-9.2.x

9.2.x For raspberrypi, increase MDNS_MAX_SERVICES to 25.

Author: dhalbert

ports/raspberrypi/lwip_inc/lwipopts.h

@@ -111,6 +111,7 @@
 #define LWIP_NETIF_EXT_STATUS_CALLBACK 1
 #define MDNS_MAX_SECONDARY_HOSTNAMES 1
 #define MEMP_NUM_SYS_TIMEOUT        (8 + 3 * (LWIP_IPV4 + LWIP_IPV6))
+#define MDNS_MAX_SERVICES           25
 #endif
 
 #ifndef NDEBUG