ARM: dts: OMAP36xx: Add device node for ABB

Add ABB device node for OMAP36xx family of devices. Data is based on
OMAP36XX Technical Reference Manual revision AB (Dec 2012).

[nm@ti.com: co-developer]
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Andrii.Tseglytskyi <andrii.tseglytskyi@ti.com>
Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>