Adds support for fuseblk binaries.

This is a rather large, single change to the SEPolicies, as fuseblk
required multiple new domains. The goal is to allow any fuseblk
drivers to also use the same sepolicy.

Note the compartmentalized domain for sys_admin and mount/unmount
permissions.

Bug: 254407246

Test: Extensive testing with an ADT-4 and NTFS USB drives.
Change-Id: I6619ac77ce44ba60edd6ab10e8436a8712459b48
diff --git a/private/vold.te b/private/vold.te
index 40c1a57..957e5d0 100644
--- a/private/vold.te
+++ b/private/vold.te
@@ -5,6 +5,7 @@
 # Switch to more restrictive domains when executing common tools
 domain_auto_trans(vold, sgdisk_exec, sgdisk);
 domain_auto_trans(vold, sdcardd_exec, sdcardd);
+domain_auto_trans(vold, fuseblkd_untrusted_exec, fuseblkd_untrusted);
 
 # For a handful of probing tools, we choose an even more restrictive
 # domain when working with untrusted block devices