FindCUDA: Mark more cache variables as advanced

Mark variables pertaining to specific situations relevant to CUDA
compilation as advanced since they are not part of normal usage.

Modules/FindCUDA.cmake

@@ -483,6 +483,10 @@ mark_as_advanced(
   CUDA_HOST_COMPILATION_CPP
   CUDA_NVCC_FLAGS
   CUDA_PROPAGATE_HOST_FLAGS
+  CUDA_BUILD_CUBIN
+  CUDA_BUILD_EMULATION
+  CUDA_VERBOSE_BUILD
+  CUDA_SEPARABLE_COMPILATION
   )
 
 # Makefile and similar generators don't define CMAKE_CONFIGURATION_TYPES, so we