Staging: comedi: fixing ni_labpc to mite dependancy

the dependancy of ni_labpc on mite was missing,

Signed-off-by: Alexander Kurz <linux@kbdbabel.org>
Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

index 0aa2b0d..79f5f2e 100644
diff --git a/drivers/staging/comedi/Kconfig b/drivers/staging/comedi/Kconfig
index 2614c3f..aad4732 100644
--- a/drivers/staging/comedi/Kconfig
+++ b/drivers/staging/comedi/Kconfig
@@ -1281,6 +1281,7 @@
 
 config COMEDI_NI_LABPC
 	tristate "NI Lab-PC and compatibles ISA and PCI support"
+	depends on COMEDI_MITE
 	select COMEDI_8255
 	select COMEDI_FC
 	default N