arm: dts: k3-am625-beagleplay-u-boot/r5: Just depend on k3-binman.dtsi

With the upcoming folder separation, there is no further need to depend
on am625-binman.dtsi. Duplicate the existing definitions to u-boot.dtsi
and r5.dts as appropriate.

Signed-off-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Bryan Brattlof <bb@ti.com>