Fix Mac build by adding -Wno-unused-parameter.

Change-Id: If8c0b2e5aa8ed73710f2622f2780b1089214f36e
diff --git a/mcld-device-build.mk b/mcld-device-build.mk
index 211b0f2..87bc0b7 100644
--- a/mcld-device-build.mk
+++ b/mcld-device-build.mk
@@ -14,6 +14,7 @@
 LOCAL_CPPFLAGS := \
   $(LOCAL_CPPFLAGS) \
   -Wall \
+  -Wno-unused-parameter \
   -Werror
 
 ifeq ($(MCLD_ENABLE_ASSERTION),true)
diff --git a/mcld-host-build.mk b/mcld-host-build.mk
index 5d54893..a5736b7 100644
--- a/mcld-host-build.mk
+++ b/mcld-host-build.mk
@@ -7,6 +7,7 @@
 LOCAL_CPPFLAGS := \
   $(LOCAL_CPPFLAGS) \
   -Wall \
+  -Wno-unused-parameter \
   -Werror
 
 ifeq ($(MCLD_ENABLE_ASSERTION),true)