Move common pixel powerhal sepolicies into one place

Only move the policies that are independent of any chipset.

Bug: 151873153
Test: selinux_policy build pass
Change-Id: Ic37b33807fcc13b3bfdd88701e9326bfd9e51293
diff --git a/power-libperfmgr/file.te b/power-libperfmgr/file.te
new file mode 100644
index 0000000..8e3a9f6
--- /dev/null
+++ b/power-libperfmgr/file.te
@@ -0,0 +1 @@
+type pps_socket, file_type;