libagmclient: Do not error on format issues

Change-Id: I4169d4f420f98a21857dad48a9a023fedf33aaf6
diff --git a/ipc/HwBinders/agm_ipc_client/Android.mk b/ipc/HwBinders/agm_ipc_client/Android.mk
index 58ede6f..d167268 100644
--- a/ipc/HwBinders/agm_ipc_client/Android.mk
+++ b/ipc/HwBinders/agm_ipc_client/Android.mk
@@ -5,6 +5,7 @@
 LOCAL_MODULE_OWNER := qti
 LOCAL_VENDOR_MODULE := true
 
+LOCAL_CFLAGS := -Wno-format
 LOCAL_SRC_FILES := \
     src/agm_client_wrapper.cpp\
     src/AGMCallback.cpp