The FIR temperature sensor must report an estimate of window temperature
so that the BTS SaMD can determine if the boundary condition between the
sensor and window is within accuracy specification.
Test: logcat previously reported access denied to thermal HAL. Access is
now granted and the Twindow elements are accessible.
Bug: 276738070
Change-Id: I72846053840e36ba8d3d59df9ba580c6c416e867