binder: fix asyncfreespace accounting for empty parcels
This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.4.170 by commit 103b16a8c51f96d5fe063022869ea906c256e5da, it was introduced in version v4.14 by commit 74310e06be4d74dcf67cd108366710dee5c576d5. For more details please see the references link.