toolchain: r44701 accidentially removed the uclibc default when TOOLCHAINOPTS is set

Signed-off-by: John Crispin <blogic@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@44766 3c298f89-4303-0410-b956-a3cf2f4a3e73

toolchain/Config.in

@@ -212,6 +212,7 @@ comment "C Library"
 choice
 	prompt "C Library implementation" if TOOLCHAINOPTS
 	default LIBC_USE_GLIBC if (aarch64 || aarch64_be)
+	default LIBC_USE_UCLIBC
 	help
 	  Select the C library implementation.