toolchain/uClibc: install ldd to target

Reported by Julien Boibessot <julien.boibessot@free.fr>.

This somehow got disabled by cb815ae003d40cc971d (two years ago!).

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

toolchain/uClibc/uclibc.mk

@@ -581,8 +581,7 @@ uclibc-clean: uclibc-test-clean
 uclibc-dirclean: uclibc-test-dirclean
 	rm -rf $(UCLIBC_DIR)
 
-uclibc-target-utils:
-#$(TARGET_DIR)/usr/bin/ldd
+uclibc-target-utils: $(TARGET_DIR)/usr/bin/ldd
 
 uclibc-target-utils-source: $(DL_DIR)/$(UCLIBC_SOURCE)