Currently shadow doorbell updates are not counted; add statistics for
those, and rename the other statistic for clarity.
Signed-off-by: John Levon <john.levon@nutanix.com>
Change-Id: I211a77902e38265c99b15862034c6d022dc582a0
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/11844
Community-CI: Broadcom CI <spdk-ci.pdl@broadcom.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>