the sysfs for NVMe drives on some older versions of the linux kernel
differs slightly from the latest kernel versions. This patch adds a
fallback to support those older kernel versions.
Change-Id: I2787e0d15d310ce1f264b0a303f53e48525a9a1d
Signed-off-by: Seth Howell <seth.howell@intel.com>
Reviewed-on: https://review.gerrithub.io/391983
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>