google-chrome: Also add ${deps}/lib64 to $LD_LIBRARY_PATH.

...as per @abbradar's suggestion. Thanks!

pkgs/applications/networking/browsers/google-chrome/default.nix

···
     tar xf data.tar.xz
   '';
 
-  rpath = makeLibraryPath deps;
+  rpath = makeLibraryPath deps + ":" + makeSearchPathOutputs "lib64" ["lib"] deps;
   binpath = makeBinPath deps;
 
   installPhase = ''