[SCSI] iscsi boot: mv iscsi_boot_sysfs to drivers/scsi

iscsi_boot_sysfs does not depend on firmware. Any iscsi driver
can use it. This patch moves iscsi_boot_sysfs to the scsi
dir, so that it can be used on any arch with any driver.

Signed-off-by: Mike Christie <mchristi@redhat.com>
Acked-by: Konrad Rzeszutek Wilk <konrad@kernel.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
diff --git a/drivers/scsi/Kconfig b/drivers/scsi/Kconfig
index 158284f..a479b3b 100644
--- a/drivers/scsi/Kconfig
+++ b/drivers/scsi/Kconfig
@@ -370,6 +370,14 @@
 
 	 http://open-iscsi.org
 
+config ISCSI_BOOT_SYSFS
+	tristate "iSCSI Boot Sysfs Interface"
+	default	n
+	help
+	  This option enables support for exposing iSCSI boot information
+	  via sysfs to userspace. If you wish to export this information,
+	  say Y. Otherwise, say N.
+
 source "drivers/scsi/cxgb3i/Kconfig"
 source "drivers/scsi/bnx2i/Kconfig"
 source "drivers/scsi/be2iscsi/Kconfig"