CUDA: Restore support for non-"all" CUDA_ARCHITECTURES with nvcc 11.5+

Since commit 8f64df0a7c (CUDA: Generic all and all-major support,
2021-12-19, v3.23.0-rc1~23^2), setting `CUDA_ARCHITECTURES` to a value
other than `all` or `all-major` is ignored with NVCC 11.5+.  Fix the
logic to return early only when actually using an "all" value.

Fixes: #23243

Source/cmGeneratorTarget.cxx

@@ -3452,12 +3452,10 @@ void cmGeneratorTarget::AddCUDAArchitectureFlags(std::string& flags) const
         cmSystemTools::OP_GREATER_EQUAL,
         this->Makefile->GetDefinition("CMAKE_CUDA_COMPILER_VERSION"),
         "11.5")) {
-    if (property == "all") {
-      flags += " -arch=all";
-    } else if (property == "all-major") {
-      flags += " -arch=all-major";
+    if (property == "all" || property == "all-major") {
+      flags = cmStrCat(flags, " -arch=", property);
+      return;
     }
-    return;
   }
 
   if (property == "all") {