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/Makefile b/drivers/net/wireless/Makefile
index 12f6c59..d38b6cc 100644
--- a/drivers/net/wireless/Makefile
+++ b/drivers/net/wireless/Makefile
@@ -10,6 +10,7 @@
 obj-$(CONFIG_WLAN_VENDOR_INTERSIL) += intersil/
 obj-$(CONFIG_WLAN_VENDOR_MARVELL) += marvell/
 obj-$(CONFIG_WLAN_VENDOR_REALTEK) += realtek/
+obj-$(CONFIG_WLAN_VENDOR_RSI) += rsi/
 obj-$(CONFIG_WLAN_VENDOR_ST) += st/
 obj-$(CONFIG_WLAN_VENDOR_ZYDAS) += zydas/
 
@@ -28,5 +29,3 @@
 obj-$(CONFIG_MAC80211_HWSIM)	+= mac80211_hwsim.o
 
 obj-$(CONFIG_WL_TI)	+= ti/
-
-obj-$(CONFIG_RSI_91X)	+= rsi/