rsi: add vendor Kconfig entry

Part of reorganising wireless drivers directory and Kconfig.

Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
diff --git a/drivers/net/wireless/Kconfig b/drivers/net/wireless/Kconfig
index 28af8b1..5186084 100644
--- a/drivers/net/wireless/Kconfig
+++ b/drivers/net/wireless/Kconfig
@@ -25,6 +25,7 @@
 source "drivers/net/wireless/intersil/Kconfig"
 source "drivers/net/wireless/marvell/Kconfig"
 source "drivers/net/wireless/realtek/Kconfig"
+source "drivers/net/wireless/rsi/Kconfig"
 source "drivers/net/wireless/st/Kconfig"
 source "drivers/net/wireless/zydas/Kconfig"
 
@@ -99,6 +100,5 @@
 source "drivers/net/wireless/rt2x00/Kconfig"
 source "drivers/net/wireless/mediatek/Kconfig"
 source "drivers/net/wireless/ti/Kconfig"
-source "drivers/net/wireless/rsi/Kconfig"
 
 endif # WLAN