nfc: llcp: simplify llcp_sock_connect() error paths

[ Upstream commit ec10fd15 ]

The llcp_sock_connect() error paths were using a mixed way of central
exit (goto) and cleanup

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Stable-dep-of: 6709d4b7 ("net: nfc: Fix use-after-free caused by nfc_llcp_find_local")
Signed-off-by: Sasha Levin <sashal@kernel.org>