Treble-ize tmpfs access

Declare *_tmpfs types for all vendor domains which need it.

Bug: 122854450
Test: Sepolicy-build tests.
Test: build cuttlefish-userdebug
Change-Id: I77b339e3572288ecc5e7746cc85cb41152035148
(cherry picked from commit 1add91e4cce6ca03415411b80dbcf8708480cd30)
diff --git a/shared/sepolicy/gceservice.te b/shared/sepolicy/gceservice.te
index 4881309..6c77ed8 100644
--- a/shared/sepolicy/gceservice.te
+++ b/shared/sepolicy/gceservice.te
@@ -1,5 +1,6 @@
 # GceService app
 type gceservice, domain;
+type gceservice_tmpfs, file_type;
 app_domain(gceservice)
 
 # Use system services exposed as part of Android framework public API