arm: dts: k3-j721e: ddr: Update to 0.5.0 version of DDR config tool

Update the ddr settings to use the DDR reg config tool rev 0.5.0.
This enables 4266MTs DDR configuration.

Signed-off-by: Praneeth Bajjuri <praneeth@ti.com>
Signed-off-by: Kevin Scholz <k-scholz@ti.com>