build: link with lld if available

Change-Id: Iaf1e7110e629fa1fa16bbd8b8cc1418fafd2408b
diff --git a/.waf-tools/default-compiler-flags.py b/.waf-tools/default-compiler-flags.py
index 78cf40d..536e3d3 100644
--- a/.waf-tools/default-compiler-flags.py
+++ b/.waf-tools/default-compiler-flags.py
@@ -137,9 +137,7 @@
     def getGeneralFlags(self, conf):
         flags = super(GccBasicFlags, self).getGeneralFlags(conf)
         flags['CXXFLAGS'] += ['-std=c++14']
-        if Utils.unversioned_sys_platform() == 'linux':
-            flags['LINKFLAGS'] += ['-fuse-ld=gold']
-        elif Utils.unversioned_sys_platform() == 'freebsd':
+        if Utils.unversioned_sys_platform() != 'darwin':
             flags['LINKFLAGS'] += ['-fuse-ld=lld']
         return flags