libpam: Update fix for CVE-2024-10041

libpam: Update fix for CVE-2024-10041

Initially, PAM community fixed CVE-2024-10041 in the version v1.6.0 via commit b3020da.
But not all cases were covered with this fix and issues were reported after the release.
In the v1.6.1 release, PAM community fixed these issues via commit b7b9636.
Backport this commit b7b9636, which
Fixes: b3020da ("pam_unix/passverify: always run the helper to obtain shadow password file entries")
Backport from https://github.com/linux-pam/linux-pam/commit/b7b96362087414e52524d3d9d9b3faa21e1db620

Signed-off-by: Shubham Kulkarni <skulkarni@mvista.com>
Signed-off-by: Steve Sakoman <steve@sakoman.com>