kernel: remove obsolete 322-ppc4xx-crypto-compile-fix.patch patches

Upstream commit c11eede powerpc: add missing explicit OF includes for ppc was
included in 3.13 and onwards, hence making those patches obsolete.

Signed-off-by: Florian Fainelli <florian@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@42263 3c298f89-4303-0410-b956-a3cf2f4a3e73