ARM: dts: msm8974: thermal: Add thermal zones for each sensor

msm8974 has 11 sensors connected to a single TSENS IP. Define a thermal
zone for each of those sensors to expose the temperature of each zone.

Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
Tested-by: Brian Masney <masneyb@onstation.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Andy Gross <agross@kernel.org>