ARM: dts: k2l: add dts node for k2l hw_rng driver

This patch adds dts node for k2l hw_random generator driver

Signed-off-by: Vitaly Andrianov <vitalya@ti.com>
[t-kristo@ti.com: added missing addresses from node identifiers]
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>