packagegroup-connectivity: Install tayga in our gateway blueprint

This is a first step to a working NAT64 setup on our gateway.

Signed-off-by: Stefan Schmidt <stefan.schmidt@huawei.com>

meta-ohos-blueprints/recipes-core/packagegroups/packagegroup-connectivity.bbappend

@@ -12,6 +12,7 @@ RDEPENDS_packagegroup-thread-br = "\
     ${@bb.utils.contains("DISTRO_FEATURES", "thread-border-router", "wpantund", "", d)} \
     hostapd \
     iptables \
+    tayga \
     "
 
 RDEPENDS_packagegroup-thread-client = "\