ARM: dts: msm: rename cti cpu node on 9625

Rename single core CTI node label and property names to include
cpu number so that they are consistent with multi core cpu
naming.

Change-Id: I56463bd0affdb3d86feea69b3e70ab46cff55559
Signed-off-by: Pratik Patel <pratikp@codeaurora.org>