The rest of the code relies on the runtime data being zero initialised
so we need to use kzalloc() to allocate it.
Reported-by: NOliver Ford <ipaqlinux@oliford.co.uk>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>