message: use new GetMirroredYtrack method instead of computing manually
diff: @@ -151,9 +151,7 @@ GPUd() void AliHLTTPCGMTrackParam::Fit
  const float Bz = prop.GetBz(prop.GetAlpha(), fX, fP[0], fP[1]);
  if (MIRROR && err == 0 && (changeDirection || canChangeDirection || directionChangePending) && fP[2] * fP[4] * Bz < 0)
  {
  - float sinphi = fabs(fP[2]) > 0.99 ? 0.99 : fP[2];
  - float cosphi = sqrt(1 - sinphi * sinphi);
  - const float mirrordY = fP[0] - 2.0 * cosphi / (fP[4] * Bz);
  + const float mirrordY = prop.GetMirroredYTrack();
  if (DEBUG) printf(" -- MiroredY: %f --> %f", fP[0], mirrordY);
  if (changeDirection || ((directionChangePending || canChangeDirection) && fabs(yy - fP[0]) > fabs(yy - mirrordY)))
  {
  