cuda: pull in libdir when linking C/C++

* In `CudaDependency._detect_language`, the first detected language is
  considered the linking one. Since `nvcc`/`cuda` implicitly know where the
  cuda dependency lives, this leads to situations where `cpp` as linking
  language is erroneously detected as `cuda` and then misses the `-L` argument.

mesonbuild/dependencies/cuda.py

@@ -24,7 +24,7 @@
 
 class CudaDependency(SystemDependency):
 
-    supported_languages = ['cuda', 'cpp', 'c'] # see also _default_language
+    supported_languages = ['cpp', 'c', 'cuda'] # see also _default_language
 
     def __init__(self, environment: 'Environment', kwargs: T.Dict[str, T.Any]) -> None:
         compilers = environment.coredata.compilers[self.get_for_machine_from_kwargs(kwargs)]