Bluetooth: hci: fix LE remote feature read refcount lifetime

[Cihangir Aktürk]

#syz test

[syzbot]

Hello,

syzbot has tested the proposed patch and the reproducer did not trigger any issue:

Reported-by: syzbot+87badb...@syzkaller.appspotmail.com
Tested-by: syzbot+87badb...@syzkaller.appspotmail.com

Tested on:

commit: 40fbbd64 Merge tag 'pull-fixes' of git://git.kernel.or..
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=163fef14580000
kernel config: https://syzkaller.appspot.com/x/.config?x=7e9c74ad1c0c0584
dashboard link: https://syzkaller.appspot.com/bug?extid=87badbb9094e008e0685
compiler: gcc (Debian 12.2.0-14+deb12u1) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
patch: https://syzkaller.appspot.com/x/patch.diff?x=12ab122a580000

Note: testing is done by a robot and is best-effort only.