message: unify computation of cluster errors depending on row number or row type
diff: @@ -157,7 +157,6 @@ MEM_CLASS_PRE() GPUdi() void MEM_LG(AliHLTTPCCAParam)::Global2Slice( float X, fl
  MEM_CLASS_PRE() GPUdi() float MEM_LG(AliHLTTPCCAParam)::GetClusterError2( int yz, int type, float z, float angle ) const
  {
  //* recalculate the cluster error wih respect to the track slope
  -
  float angle2 = angle * angle;
  MakeType(const float*) c = fParamS0Par[yz][type];
  float v = c[0] + z * ( c[1] + c[3] * z ) + angle2 * ( c[2] + angle2 * c[4] + c[5] * z );
  @@ -166,18 +165,9 @@ MEM_CLASS_PRE() GPUdi() float MEM_LG(AliHLTTPCCAParam)::GetClusterError2( int yz
  MEM_CLASS_PRE() GPUdi() void MEM_LG(AliHLTTPCCAParam)::GetClusterErrors2( int iRow, float z, float sinPhi, float cosPhi, float DzDs, float &Err2Y, float &Err2Z ) const
  {
  - //
  // Use calibrated cluster error from OCDB
  - //
  -
  - z = CAMath::Abs( ( 250. - 0.275 ) - CAMath::Abs( z ) );
  int type = ( iRow < 63 ) ? 0 : ( ( iRow > 126 ) ? 1 : 2 );
  - float cosPhiInv = CAMath::Abs( cosPhi ) > 1.e-2 ? 1. / cosPhi : 0;
  - float angleY = sinPhi * cosPhiInv ; // dy/dx
  - float angleZ = DzDs * cosPhiInv ; // dz/dx
  -
  - Err2Y = GetClusterError2( 0, type, z, angleY );
  - Err2Z = GetClusterError2( 1, type, z, angleZ );
  + GetClusterErrors2v1(type, z, sinPhi, cosPhi, DzDs, Err2Y, Err2Z);
  }
  MEM_CLASS_PRE() GPUdi() void MEM_LG(AliHLTTPCCAParam)::GetClusterErrors2v1( int rowType, float z, float sinPhi, float cosPhi, float DzDs, float &Err2Y, float &Err2Z ) const
  