Thermal HAL: fixed sepolicy.

thermal hal must be able to access system temperature files and proc file.

Bug: 34260476
Test: vts, adb shell dmesg | audit2allow -p $OUT/root/sepolicy
Change-Id: I6ab713f527d5d0393b5456a351d48ed5ed10860e
diff --git a/sepolicy/hal_thermal.te b/sepolicy/hal_thermal.te
new file mode 100644
index 0000000..025806a
--- /dev/null
+++ b/sepolicy/hal_thermal.te
@@ -0,0 +1,4 @@
+allow hal_thermal sysfs_thermal:dir search;
+allow hal_thermal sysfs_thermal:file { getattr open read };
+allow hal_thermal sysfs_thermal:lnk_file read;
+allow hal_thermal proc_stat:file { getattr open read };