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

commit 429866f2c5568b35c77b2c21379f22caa64c5bcc from
git://git.ti.com/ti-linux-kernel/ti-linux-kernel.git

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

Signed-off-by: Roger Quadros <rogerq@kernel.org>
Reviewed-by: Matt Ranostay <mranostay@ti.com>
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Signed-off-by: Xulin Sun <xulin.sun@windriver.com>