The size of relative data in F11 is already defined by RMI_F11_REL_BYTES.
Use the define in rmi_f11_rel_pos_report() to be consistent.
Signed-off-by: NAndrew Duggan <aduggan@synaptics.com>
Reviewed-by: NNick Dyer <nick@shmanahar.org>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>