touch: provide permission for TouchInspector app

avc:  denied  { write } for  name="driver_test" dev="proc"
ino=4026535975 scontext=u:r:platform_app:s0:c512,c768
tcontext=u:object_r:proc_touch:s0 tclass=file permissive=1
app=com.google.touch.touchinspector

avc:  denied  { open } for  path="/proc/fts/driver_test" dev="proc"
ino=4026535975 scontext=u:r:platform_app:s0:c512,c768
tcontext=u:object_r:proc_touch:s0 tclass=file permissive=1
app=com.google.touch.touchinspector

avc:  denied  { getattr } for  path="/proc/fts/driver_test"
dev="proc" ino=4026535975 scontext=u:r:platform_app:s0:c512,c768
tcontext=u:object_r:proc_touch:s0 tclass=file permissive=1
app=com.google.touch.touchinspector

avc:  denied  { read } for  name="driver_test" dev="proc"
ino=4026535975 scontext=u:r:platform_app:s0:c512,c768
tcontext=u:object_r:proc_touch:s0 tclass=file permissive=1
app=com.google.touch.touchinspector

Bug: 279675034
Test: trigger touch calibration by the app.

Change-Id: Ib1621aa0fd3f10c2e12d7ec8930908ca77c615bb
Signed-off-by: Yen-Chao Chen <davidycchen@google.com>
diff --git a/touch/touchinspector/sepolicy/file.te b/touch/touchinspector/sepolicy/file.te
new file mode 100644
index 0000000..f9468a0
--- /dev/null
+++ b/touch/touchinspector/sepolicy/file.te
@@ -0,0 +1,3 @@
+userdebug_or_eng(`
+    typeattribute proc_touch mlstrustedobject;
+')