meson: Need dependencies while linking shared library too (#401)

Otherwise we get linker errors for ws2_32, etc.
diff --git a/meson.build b/meson.build
index 7185094..fbd4c41 100644
--- a/meson.build
+++ b/meson.build
@@ -199,6 +199,7 @@
 
     usrsctp = shared_library('usrsctp',
         link_whole: usrsctp_static,
+        dependencies: dependencies,
         vs_module_defs: usrsctp_def,
         install: true,
         version: meson.project_version())