Latest RPI kernel doesn't support zram

[mk01]

root@xbianrpi:/tmp# uname -r
3.10.23+
root@xbianrpi:/tmp# modinfo zram
filename: /lib/modules/3.10.23+/kernel/drivers/staging/zram/zram.ko
description: Compressed RAM Block Device
author: Nitin Gupta <ngupta@vflare.org>
license: Dual BSD/GPL
depends:
staging: Y
intree: Y
vermagic: 3.10.23+ mod_unload ARMv6 p2v8
parm: num_devices:Number of zram devices (uint)

---

it was removed from .config from raspberry default kernel tree.
(raspbian is using it as it is there, raspbmc with small changes)