message: [android] add `trel_dnssd.cpp` to Android.mk
diff: @@ -137,6 +137,7 @@ LOCAL_SRC_FILES := \
  src/proto/feature_flag.proto \
  src/sdp_proxy/advertising_proxy.cpp \
  src/sdp_proxy/discovery_proxy.cpp \
  + src/trel_dnssd/trel_dnssd.cpp \
  src/utils/dns_utils.cpp \
  src/utils/hex.cpp \
  src/utils/infra_link_selector.cpp \
  