orinoco: move under intersil vendor directory

Part of reorganising wireless drivers directory and Kconfig.

Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
diff --git a/drivers/net/wireless/intersil/Kconfig b/drivers/net/wireless/intersil/Kconfig
index 4bc3688..2b056b6 100644
--- a/drivers/net/wireless/intersil/Kconfig
+++ b/drivers/net/wireless/intersil/Kconfig
@@ -12,6 +12,7 @@
 if WLAN_VENDOR_INTERSIL
 
 source "drivers/net/wireless/intersil/hostap/Kconfig"
+source "drivers/net/wireless/intersil/orinoco/Kconfig"
 source "drivers/net/wireless/intersil/p54/Kconfig"
 
 endif # WLAN_VENDOR_INTERSIL