linux-pam: adjust login pam file for SELinux
When SELinux support is enabled, the login pam file installed by
linux-pam should be adjusted to use the pam_selinux.so module.
To achieve this in a reasonably simple manner, we introduce the SELinux
related lines in login.pam as comments, and if SELinux support is
enabled, turn those commented lines into real lines.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Tested-by: Bryce Ferguson <bryce.ferguson@rockwellcollins.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>