openssl: bump PR

We don't normally do this, but with the recent CVE fixes (most
importantly the one for the serious CVE-2014-0160 vulnerability) I am
bumping PR explicitly to make it a bit more obvious that the patch has
been applied.

Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>