tools/coreutils: install ln

It is needed for libsepol on non-GNU systems

Signed-off-by: Felix Fietkau <[email protected]>

tools/coreutils/Makefile

@@ -16,7 +16,7 @@ PKG_HASH:=8891d349ee87b9ff7870f52b6d9312a9db672d2439d289bc57084771ca21656b
 
 HOST_BUILD_PARALLEL := 1
 
-BUILD_PROGRAMS = date readlink touch
+BUILD_PROGRAMS = date readlink touch ln
 
 include $(INCLUDE_DIR)/host-build.mk