gcc: fix avr32 default GCC version

Fix gcc version default after r36355 removing all GCC_DEFAULT_VERSION
symbols.

Signed-off-by: Jonas Gorski <jogo@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@36688 3c298f89-4303-0410-b956-a3cf2f4a3e73

toolchain/gcc/Config.in

@@ -2,7 +2,7 @@
 
 choice
 	prompt "GCC compiler Version" if TOOLCHAINOPTS
-	default GCC_USE_VERSION_4_4_7 if GCC_DEFAULT_VERSION_4_4_7
+	default GCC_USE_VERSION_4_4_7 if avr32
 	default GCC_USE_VERSION_4_6_LINARO
 	help
 	  Select the version of gcc you wish to use.