toolchain: BR2_NEEDS_GETTEXT must be y when uClibc is used

BR2_NEEDS_GETTEXT was already set to y for Buildroot internal
toolchain and external toolchains based on uClibc, but wasn't set for
toolchains based on uClibC built by the Crosstool-NG backend.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

toolchain/toolchain-common.in

@@ -60,6 +60,7 @@ config BR2_NEEDS_GETTEXT
 	bool
 	default y if BR2_TOOLCHAIN_BUILDROOT
 	default y if BR2_TOOLCHAIN_EXTERNAL_UCLIBC
+	default y if BR2_TOOLCHAIN_CTNG_uClibc
 
 config BR2_NEEDS_GETTEXT_IF_LOCALE
 	bool