phy: ti: j721e-wiz: use OF data for device specific data

Move device specific data into OF data structure so it
is easier to maintain and we can get rid of if statements.

Based on: https://lore.kernel.org/linux-phy/20220526064121.27625-1-rogerq@kernel.org/T/#u



Cc: Roger Quadros <rogerq@kernel.org>
Signed-off-by: Matt Ranostay <mranostay@ti.com>