tcp_transport: list files manually in component cmake file
-set(COMPONENT_SRCDIRS ".")
+set(COMPONENT_SRCS "transport.c"
+ "transport_ssl.c"
+ "transport_tcp.c"
+ "transport_utils.c")
+
set(COMPONENT_ADD_INCLUDEDIRS "include")
set(COMPONENT_REQUIRES lwip esp-tls)
