arm: dts: k3: am62x/am62px: Enable tifs-rm-cfg in binman

arm: dts: k3: am62x/am62px: Enable tifs-rm-cfg in binman

Add rcfg_yaml_tifs node override to use tifs-rm-cfg.yaml instead of
the default rm-cfg.yaml for am625-sk and am62p-sk platforms.

This enables binman to include the tifs-rm-cfg.yaml configuration
when building tiboot3 images, bringing these platforms in line with
other K3 devices like am62a-sk that already use tifs-rm-cfg.yaml.

This builds on the tifs-rm-cfg files added/updated earlier in this series.

Signed-off-by: Sparsh Kumar <sparsh-kumar@ti.com>
Reviewed-by: Neha Malcom Francis <n-francis@ti.com>