crypto fix backport for 3.17 (F-21)

[Dan Horák]

Hi kernel-maint,

I'd like to ask you to backport
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/crypto/algif_skcipher.c?id=e2cffb5f493a8b431dc87124388ea59b79f0bccb
to our F-21 kernel as soon as possible. Older kernel should be solved
automagically when the patch goes to stable branches. For F-21 this is
causing installation failure on encrypted device, see
https://bugzilla.redhat.com/show_bug.cgi?id=1160289 for the whole
history. It is affecting all arches with page size >= 64k, like ppc*
and aarch64.


	Thanks

		Dan