Fix SparseQR for row-major inputs. (grafted from f12914580cba7071edaabefe702d7838f8b021f4)
Fix SparseQR for row-major inputs.
(grafted from f12914580cba7071edaabefe702d7838f8b021f4)

--HG--
branch : 3.2

robustrobotics/eigen,robustrobotics/eigen,robustrobotics/eigen,robustrobotics/eigen