[Buildroot] [PATCH 3/4] toolchain: only external toolchain option displayed

[Guo Ren]

Currently csky architecture isn't support the "internal toolchain
backend", so we disable it in config.

Signed-off-by: Guo Ren <ren_guo at c-sky.com>
---
 toolchain/Config.in | 1 +
 1 file changed, 1 insertion(+)

diff --git a/toolchain/Config.in b/toolchain/Config.in
index de01585..652c9d8 100644
--- a/toolchain/Config.in
+++ b/toolchain/Config.in
@@ -46,6 +46,7 @@ config BR2_TOOLCHAIN_BUILDROOT
 	depends on !BR2_bf607
 	depends on !BR2_bf608
 	depends on !BR2_bf609
+	depends on !BR2_csky
 
 config BR2_TOOLCHAIN_EXTERNAL
 	bool "External toolchain"
-- 
1.9.1