Minimize public policy

Ideally, public should only contain APIs (types / attributes) for
vendor. The other statements like allow/neverallow/typeattributes are
regarded as implementation detail for platform and should be in private.

Bug: 232023812
Test: m selinux_policy
Test: diff <(git diff --staged | grep "^-" | cut -b2- | sort) \
           <(git diff --staged | grep "^+" | cut -b2- | sort)
Test: remove comments on plat_sepolicy.cil, replace base_typeattr_*
      to base_typeattr and then compare old and new plat_sepolicy.cil
Change-Id: I5e7d2da4465ab0216de6bacdf03077d37f6ffe12
diff --git a/private/inputflinger.te b/private/inputflinger.te
index 9696b49..9e8e35b 100644
--- a/private/inputflinger.te
+++ b/private/inputflinger.te
@@ -1,3 +1,16 @@
 typeattribute inputflinger coredomain;
 
 init_daemon_domain(inputflinger)
+
+binder_use(inputflinger)
+binder_service(inputflinger)
+
+binder_call(inputflinger, system_server)
+
+wakelock_use(inputflinger)
+
+allow inputflinger input_device:dir r_dir_perms;
+allow inputflinger input_device:chr_file rw_file_perms;
+
+r_dir_file(inputflinger, cgroup)
+r_dir_file(inputflinger, cgroup_v2)