cpuinit: get rid of __cpuinit, fifth regexp

This commit is the result of:

find arch/ -name "*.h" | xargs sed -i "s/ __cpuinit//g"

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Dennis Rassmann <showp1984@gmail.com>