LAPACKE: leading dimension checks are too strict in LAPACKE_?geev_work

[vladimir-ch]

LAPACKE_?geev_work requires ldvl and ldvr to be at least n always:

        if( ldvl < n ) {
            info = -10;
            LAPACKE_xerbla( "LAPACKE_dgeev_work", info );
            return info;
        }
        if( ldvr < n ) {
            info = -12;
            LAPACKE_xerbla( "LAPACKE_dgeev_work", info );
            return info;
        }

This is in contrast to the Fortran code that requires it only if the corresponding eigenvectors are computed:

      ELSE IF( LDVL.LT.1 .OR. ( WANTVL .AND. LDVL.LT.N ) ) THEN
         INFO = -9
      ELSE IF( LDVR.LT.1 .OR. ( WANTVR .AND. LDVR.LT.N ) ) THEN
         INFO = -11
      END IF