pam: upgraded package to upstream

Upgraded sys-libs/pam to version 1.2.1-r1 on amd64

CQ-DEPEND=CL:286035
BUG=chromium:508630
TEST=`cbuildbot --remote chromiumos-sdk {x86-alex,stumpy}-release` passes

Change-Id: Id960d010213d0a7495daab14681c6bced400e144
Reviewed-on: https://chromium-review.googlesource.com/285554
Tested-by: Samuel Tan <samueltan@chromium.org>
Reviewed-by: Mike Frysinger <vapier@chromium.org>
Commit-Queue: Samuel Tan <samueltan@chromium.org>
9 files changed