crypto: picoxcell - adjust the position of tasklet_init and fix missed tasklet_kill
Since tasklet is needed to be initialized before registering IRQ
handler, adjust the position of tasklet_init to fix the wrong order.
Besides, to fix the missed tasklet_kill, this patch adds a helper
function and uses devm_add_action to kill the tasklet automatically.
Fixes: ce92136843cb ("crypto: picoxcell - add support for the picoxcell crypto engines") Signed-off-by: Chuhong Yuan <hslester96@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>