thermal: qcom: tsens-8960: Add support for 8960 family of SoCs

8960 family of SoCs have the TSENS device as part of a domain
thats not always ON. Hence add .suspend and .resume hooks to
save and restore some of the inited register context.

8960 family has TSENS as part of GCC, hence reuse the GCC
regmap. Also 8960 family had some of the TSENS init sequence thats
required to be done by the HLOS driver (some later versions of TSENS
do not export these registers to non-secure world, and hence need
these initializations to be done by secure bootloaders)

8660 from the same family has just one sensor and hence some register
offset/layout differences which need special handling in the driver.

Based on the original code from Siddartha Mohanadoss, Stephen Boyd and
Narendran Rajan.

Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>