haskell-hsc3-lang: add missing override for 7.2.x

pkgs/top-level/haskell-packages.nix

···
   hsc3Lang = callPackage ../development/libraries/haskell/hsc3-lang {
     hmatrixSpecial = self.hmatrixSpecial.override {
       hmatrix = self.hmatrix.override { binary = self.binary_0_7_2_2; };
+      hmatrixGsl = self.hmatrixGsl.override {
+        hmatrix = self.hmatrix.override { binary = self.binary_0_7_2_2; };
+      };
     };
   };