autorun_post: modify normalizePaths regex

Current regex only worked for a narrow set of paths,
e.g. "/opt/spdk" and failed trying to normalize other
paths.
Make regex much more greedy by matching the whole path
up to first "/spdk/" occurence in path string.

Change-Id: Ia76b63dec6635cc9dc5d96f462cb89f2118844e2
Signed-off-by: Karol Latecki <karol.latecki@nutanix.com>
Reviewed-on: https://review.spdk.io/c/spdk/spdk/+/26229


Reviewed-by: Tomasz Zawadzki <tomasz@tzawadzki.com>
Reviewed-by: Michal Berger <michal.berger@nutanix.com>
Reviewed-by: Jim Harris <jim.harris@nvidia.com>
Reviewed-by: Konrad Sztyber <ksztyber@nvidia.com>
Tested-by: SPDK Automated Test System <spdkbot@gmail.com>