erlang-p1_pam license change: GPLv2 --> ASL 2.0

[Randy Barlow]

The upstream for erlang-p1_pam has changed their license from GPLv2 to
ASL 2.0 in version 1.0.1[0]. I almost missed it since that's a .z
release! I plan to make that update only on Rawhide[1] (to version
1.0.3).

[0] https://github.com/processone/epam/blob/master/CHANGELOG.md
[1] https://bugzilla.redhat.com/show_bug.cgi?id=1415854