package/linux-pam: bump version to 1.2.1

package/linux-pam: bump version to 1.2.1

Move to the latest release of linux-pam. This allows us to remove
a number of patches and consolidate the existing ones :

- 0001-configure.patch
- 0007-rhosts.patch

these two patches deal with the ruserok function, which is not
usable with uclibc. Consolidated into
0002-Conditionally-compile-per-ruserok-availability.patch.

- 0003-group.patch
- 0005-succeed.patch
- 0006-time.patch

these three patches deal with the innetgr function, which is not
usable with uclibc. Consolidated into
0003-Conditionally-compile-per-innetgr-availability.patch.

- 0004-mkdir.patch

Fixed in upstream, no longer required.

- 0002-doc-makefile-am.patch

renamed to 0001-doc-makefile-am.patch.

- 0008-fix-CVE-2014-2583.patch
- 0009-fix-CVE-2013-7041.patch

These patches are already included in the new release and so
can be safely deleted.

Signed-off-by: Brendan Heading <brendanheading@gmail.com>
Tested-by: Carlos Santos <casantos@datacom.ind.br>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>