s3:net rpc registry: make getsd succeed when key sd only gives access to SD not key...

s3:net rpc registry: make getsd succeed when key sd only gives access to SD not key contents

You don't need the REG_KEY_READ permissions to access the SD of a key.
And for instance, the key HKLM\security ususally has no specific bits
set for builtin\administrators, but the READ_CONTROL_ACCESS.
I.e. builtin\administrators can get the sd but not enumerate the key.