Fix regressive zephyr unit tests (#339)

zephyr/tests/bacnet/bacapp/CMakeLists.txt

@@ -41,6 +41,11 @@ if(BOARD STREQUAL unit_testing)
     ${BACNET_SRC}/bactext.c
     ${BACNET_SRC}/indtext.c
     ${BACNET_SRC}/lighting.c
+    ${BACNET_SRC}/hostnport.c
+    ${BACNET_SRC}/dailyschedule.c
+    ${BACNET_SRC}/weeklyschedule.c
+    ${BACNET_SRC}/basic/sys/bigend.c
+    ${BACNET_SRC}/bactimevalue.c
     )
 
   add_definitions(-DBACAPP_PRINT_ENABLED=1 -DBACAPP_SNPRINTF_ENABLED=1)