ARM: AM43xx: hwmod: Add data for DES

AM43xx SoC contains DES crypto hardware accelerator. Add hwmod data for
this IP so that it can be utilized by crypto frameworks.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>