Iw: Silence some warnings

Silence some (benign) warnings.

Bug: 26105799
Change-Id: I5c8444662e0673f730d2ad196ad25d52d36cbead
diff --git a/Android.mk b/Android.mk
index 53186f9..20b0432 100644
--- a/Android.mk
+++ b/Android.mk
@@ -11,6 +11,13 @@
   sections.c
 
 LOCAL_CFLAGS += -DCONFIG_LIBNL20
+
+# Silence some warnings for now. Needs to be fixed upstream. b/26105799
+LOCAL_CFLAGS += -Wno-unused-parameter \
+                -Wno-sign-compare \
+                -Wno-format
+LOCAL_CLANG_CFLAGS += -Wno-enum-conversion
+
 LOCAL_LDFLAGS := -Wl,--no-gc-sections
 LOCAL_MODULE_TAGS := debug
 LOCAL_STATIC_LIBRARIES := libnl