ARM: dts: msm: Add KTM hotplug feature for msm8226

Add entry for hotplug threshold. Set hotplug threshold and threshold
hysteresis to 110degC and 90degC respectively.

Add cpu sensors mapping.

Change-Id: Ic833c00a42dbcbec71e730eccd2d52b4bdabf92e
Signed-off-by: Jennifer Liu <chihning@codeaurora.org>