Added compile-test of CoAP/LWM2M with DTLS

tests/01-compile-base/Makefile

@@ -12,6 +12,8 @@ libs/energest/native \
 libs/energest/sky \
 libs/data-structures/native \
 libs/data-structures/sky \
+ipso-objects/native \
+ipso-objects/native:MAKE_WITH_DTLS=1 \
 rpl-udp/sky \
 rpl-border-router/native \
 rpl-border-router/sky \

tests/03-compile-arm-ports-02/Makefile

@@ -10,6 +10,7 @@ platform-specific/cc2538-common/pka/zoul \
 platform-specific/zoul/orion/ip64-router/zoul:BOARD=orion \
 coap/zoul \
 ipso-objects/zoul \
+ipso-objects/zoul:MAKE_WITH_DTLS=1 \
 hello-world/zoul \
 sensniff/zoul \
 sensniff/zoul:ZOUL_CONF_SUB_GHZ_SNIFFER=1 \