fix deps for selftest

CMakeLists.txt

@@ -127,7 +127,8 @@ add_executable(zerotier-selftest
 )
 
 target_link_libraries(zerotier-selftest 
-    zerotier-core 
+    zerotier-core
+    zerotier-osdep
     Threads::Threads
     nlohmann_json::nlohmann_json 
     prometheus-cpp-lite

osdep/CMakeLists.txt

@@ -1,5 +1,5 @@
 cmake_minimum_required(VERSION 3.13)
-project(osdep LANGUAGES CXX ASM)
+project(zerotier-osdep LANGUAGES CXX ASM)
 
 set(SRC_FILES
     Arp.cpp