VS: Add CUDA flag table entry for nvcc --keep flag

Fixes: #27380

Templates/MSBuild/FlagTables/v10_Cuda.json

@@ -111,6 +111,20 @@
     "value": "true",
     "flags": []
   },
+  {
+    "name":  "Keep",
+    "switch": "keep",
+    "comment": "",
+    "value": "true",
+    "flags": []
+  },
+  {
+    "name":  "Keep",
+    "switch": "-keep",
+    "comment": "",
+    "value": "true",
+    "flags": []
+  },
   {
     "name":  "MaxRegCount",
     "switch": "maxrregcount=",