cpuinit: get rid of __cpuinit, second regexp

This commit is the result of:

find -name "*.c" | xargs sed -i "s/ __cpuexit / /g"

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