thermal: tsens: Disable Tsens interrupts during driver initialization

TSENS upper lower interrupt for all sensors will be enabled by
default. Disable interrupts during driver initialization and enable
them based on client requirement.

Change-Id: I7ad5d50ec9bb2a4c782787c7a1a6b8b42b1128fc
Signed-off-by: Rama Krishna Phani A <rphani@codeaurora.org>