It is safe to say Y to this question, in most cases.
If unsure, say N.
+config IDEPCI_PCIBUS_ORDER
+ def_bool PCI && BLK_DEV_IDE=y && BLK_DEV_IDEPCI
+
config BLK_DEV_OFFBOARD
bool "Boot off-board chipsets first support"
depends on PCI && BLK_DEV_IDEPCI