nvme: add new line after variable declatation

[ Upstream commit f1c772d581843e3a14bbd62ef7e40b56fc307f27 ]

Add a new line in functions nvme_pr_preempt(), nvme_pr_clear(), and
nvme_pr_release() after variable declaration which follows the rest of
the code in the nvme/host/core.c.

No functional change(s) in this patch.

Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Stable-dep-of: c292a337d0e4 ("nvme: Fix IOC_PR_CLEAR and IOC_PR_RELEASE ioctls for nvme devices")
Signed-off-by: Sasha Levin <sashal@kernel.org>