media: ipu3-cio2: Fix PM runtime usage_count in driver unbind

stable inclusion
from stable-v5.10.173
commit 3b78c2482bbe1889bc8c441e113c666ff6b6b329
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I8BFR3

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=3b78c2482bbe1889bc8c441e113c666ff6b6b329



--------------------------------

commit 909d3096 upstream.

Get the PM runtime usage_count and forbid PM runtime at driver unbind. The
opposite is being done in probe() already.

Fixes: commit c2a6a07a ("media: intel-ipu3: cio2: add new MIPI-CSI2 driver")
Cc: stable@vger.kernel.org # for >= 4.16
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Bingbu Cao <bingbu.cao@intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: sanglipeng <sanglipeng1@jd.com>