ARM: dts: Configure omap5 AESS

We are missing AESS for omap5. Looks like it's similar to what we have
for omap4, and this gets ti-sysc interconnect target module driver to
detect it properly.

Note that we currently have no child device driver available for it.

Cc: H. Nikolaus Schaller <hns@goldelico.com>
Cc: Matthijs van Duin <matthijsvanduin@gmail.com>
Cc: Peter Ujfalusi <peter.ujfalusi@ti.com>
Cc: Tero Kristo <t-kristo@ti.com>
Tested-by: Nikolaus Schaller <hns@goldelico.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>