Using the VPD API allows to simplify the code and completely get
rid of t3_seeprom_write().

Link: https://lore.kernel.org/r/a0291004-dda3-ea08-4d6c-a2f8826c8527@gmail.comSigned-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Jakub Kicinski <kuba@kernel.org>