sepolicy: allow setprop for thermal_controld

selinux denied log:
[   53.774820] type=1400 audit(1709683991.036:9): avc:  denied  { write } for  comm="setprop" name="property_service" dev="tmpfs" ino=842 scontext=u:r:pixel-thermal-control-sh:s0 tcontext=u:object_r:property_socket:s0 tclass=sock_file permissive=0

Bug: 328118301
Test: adb shell getprop vendor.disable.thermalhal.control
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:2e4c437b43615ab2fd0e96627681225a209f12b1)
Merged-In: I590f05d1119d11400b0115fff63b3420790e7332
Change-Id: I590f05d1119d11400b0115fff63b3420790e7332