toolchain-external: fix x86 codesourcery config symbol typo

As noticed on irc.

Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
diff --git a/toolchain/toolchain-external/Config.in b/toolchain/toolchain-external/Config.in
index 0a4b922..678babd 100644
--- a/toolchain/toolchain-external/Config.in
+++ b/toolchain/toolchain-external/Config.in
@@ -199,7 +199,7 @@
 	  has support for the following variants:
             - SH2A, uClibc, big endian
 
-config BR2_TOOLCHAIN_EXTERNAL_CODESOUCERY_X86_201009
+config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_X86_201009
 	bool "Sourcery CodeBench x86/x86_64 2010.09"
 	depends on BR2_i386 || BR2_x86_64
 	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
@@ -271,7 +271,7 @@
 	default "sh-linux-gnu"           if BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_SH201103
 	default "sh-uclinux"             if BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_SH2A_201009
 	default "sh-uclinux"             if BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_SH2A_201103
-	default "i686-pc-linux-gnu"	 if BR2_TOOLCHAIN_EXTERNAL_CODESOUCERY_X86_201009
+	default "i686-pc-linux-gnu"	 if BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_X86_201009
 	default "bfin-uclinux"		 if BR2_TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_2010RC1 && !BR2_BFIN_FDPIC
 	default "bfin-linux-uclibc"	 if BR2_TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_2010RC1 && BR2_BFIN_FDPIC
 	default $(BR2_TOOLCHAIN_EXTERNAL_CUSTOM_PREFIX) \