legacy: add options for the legacy Realtek WiFi options in linux-firmware

Reported-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Peter Korsgaard <jacmet@uclibc.org>
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

Config.in.legacy

@@ -40,6 +40,24 @@ comment "As long as these options stay selected, the build   "
 comment "will fail.                                          "
 endif
 
+#
+# Legacy options since 2013.05
+#
+
+config BR2_PACKAGE_LINUX_FIRMWARE_RTL_8192
+	bool "Realtek 8192 replaced by Realtek 81xx"
+	select BR2_LEGACY
+	select BR2_PACKAGE_LINUX_FIRMWARE_RTL_81XX
+	help
+	  Now covers the whole Realtek 81xx familly: 8188/8192.
+
+config BR2_PACKAGE_LINUX_FIRMWARE_RTL_8712
+	bool "Realtek 8712 replaced by Realtek 87xx"
+	select BR2_LEGACY
+	select BR2_PACKAGE_LINUX_FIRMWARE_RTL_87XX
+	help
+	  Now covers the whole Realtek 87xx familly: 8712/8723.
+
 #
 # Legacy options since 2013.02
 #