nfc: Fix potential resource leaks

nfc: Fix potential resource leaks

[ Upstream commit 6c5d22f47d82f2c03ffd2dcbca37273a384ba5e9 ]

nfc_get_device() take reference for the device, add missing
nfc_put_device() to release it when not need anymore.
Also fix the style warnning by use error EOPNOTSUPP instead of
ENOTSUPP.

Fixes: 93b728042fb4 ("NFC: netlink: SE API implementation")
Fixes: 37e1a7ab7447 ("nfc: netlink: Add capability to reply to vendor_cmd with data")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>