[Android] Fix NetworkInterface.GetAllNetworkInterfaces on API 21-23 (dotnet#76541)

* Bring back pal_ifaddrs

* Update the header file

Author: simonrozsival

src/native/libs/System.Native/CMakeLists.txt

@@ -85,6 +85,10 @@ append_extra_system_libs(NATIVE_LIBS_EXTRA)
 
 if (CLR_CMAKE_TARGET_ANDROID AND NOT HAVE_GETIFADDRS)
     add_definitions(-DANDROID_GETIFADDRS_WORKAROUND)
+    add_compile_options(-Wno-gnu-zero-variadic-macro-arguments)
+
+    list (APPEND NATIVE_LIBS_EXTRA -llog)
+    list (APPEND NATIVE_SOURCES pal_ifaddrs.c)
 endif ()
 
 if (GEN_SHARED_LIB)