toolchain/microblaze: fix up big-endian characteristics

The big-endian microblaze external toolchain is missing vital
characteristics being set, such as LARGEFILE support, IPV6 and so on.

Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Tested-by: Stephan Hoffmann <sho@reLinux.de>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

toolchain/toolchain-external/Config.in

@@ -461,6 +461,11 @@ config BR2_TOOLCHAIN_EXTERNAL_XILINX_MICROBLAZEEL_V2
 config BR2_TOOLCHAIN_EXTERNAL_XILINX_MICROBLAZEBE_V2
 	bool "Xilinx Big Endian Microblaze GNU Tools"
 	depends on BR2_microblazebe
+	select BR2_LARGEFILE
+	select BR2_INET_IPV6
+	select BR2_INET_RPC
+	select BR2_ENABLE_LOCALE
+	select BR2_USE_WCHAR
 	help
 	  Toolchain for the Microblaze architecture, from
 	  http://wiki.xilinx.com/mb-gnu-tools