arm64: dts: ti: am65/j721e: Fix up un-necessary status set to "okay" for crypto

The default state of a device tree node is "okay". There is no specific
use of explicitly adding status = "okay" in the SoC dtsi.

Signed-off-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Tony Lindgren <tony@atomide.com>
Reviewed-by: Keerthy <j-keerthy@ti.com>
Acked-by: Tero Kristo <t-kristo@ti.com>
Cc: Keerthy <j-keerthy@ti.com>
Link: https://lore.kernel.org/r/20201113211826.13087-4-nm@ti.com