Revert "msm8960_tsens: enable all thermal devices"

This reverts commit ea7339156341d2dc8a121b783e2571a7590257a6.
Revert "Revert "msm8960_tsens: enable all thermal devices""

This reverts commit 5b25dcdbbf2f473043eb58a9c4f8416030e61f9f.
Fixed io_fraction