binutils: don't default to 2.22

Lots of packages are failing with binutils 2.22 with undefined symbols,
as it defaults to --no-copy-dt-needed-entries. Long term, the packages
should get fixed, but let's keep it at 2.21.1 for now.

For more details, see:
- http://wiki.debian.org/ToolChain/DSOLinking
- https://wiki.ubuntu.com/NattyNarwhal/ToolchainTransition

Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

package/binutils/Config.in.host

@@ -3,7 +3,7 @@ comment "Binutils Options"
 choice
 	prompt "Binutils Version"
 	default BR2_BINUTILS_VERSION_2_21 if (BR2_mips || BR2_mipsel || BR2_sh)
-	default BR2_BINUTILS_VERSION_2_22 if (BR2_UCLIBC_VERSION_0_9_32 || BR2_UCLIBC_VERSION_SNAPSHOT)
+	default BR2_BINUTILS_VERSION_2_21_1 if (BR2_UCLIBC_VERSION_0_9_32 || BR2_UCLIBC_VERSION_SNAPSHOT)
 	default BR2_BINUTILS_VERSION_2_21
 	help
 	  Select the version of binutils you wish to use.