3.18-stable patches

3.18-stable patches

added patches:
	backlight-as3711_bl-fix-device-tree-node-lookup.patch
	backlight-max8925_bl-fix-device-tree-node-lookup.patch
	backlight-tps65217_bl-fix-device-tree-node-lookup.patch
	media-cx231xx-add-support-for-avermedia-dvd-ezmaker-7.patch
	media-dvb_frontend-fix-locking-issues-at-dvb_frontend_get_event.patch
	media-v4l2-compat-ioctl32-prevent-go-past-max-size.patch
	nfsd-restrict-rd_maxcount-to-svc_max_payload-in-nfsd_encode_readdir.patch
	scsi-qla2xxx-fix-setting-lower-transfer-speed-if-gpsc-fails.patch
	ubifs-fix-potential-integer-overflow-in-allocation.patch
	udf-detect-incorrect-directory-size.patch
	video-uvesafb-fix-integer-overflow-in-allocation.patch
	xen-remove-unnecessary-bug_on-from-__unbind_from_irq.patch