Allow implicit-fallthrough warnings locally. DO NOT MERGE.

It will be a global error by default.
This change is not needed for goog/master.

Test: make checkbuild
Bug: 112564944
Change-Id: Ie90ad1f59f6922da6cecd4a0ac136b1e42b6d482
Exempt-From-Owner-Approval: do not block on new warnings
diff --git a/wifi/1.2/default/Android.mk b/wifi/1.2/default/Android.mk
index 3919690..3c26383 100644
--- a/wifi/1.2/default/Android.mk
+++ b/wifi/1.2/default/Android.mk
@@ -30,6 +30,8 @@
 ifdef WIFI_HIDL_FEATURE_DISABLE_AP
 LOCAL_CPPFLAGS += -DWIFI_HIDL_FEATURE_DISABLE_AP
 endif
+# Allow implicit fallthroughs in wifi_legacy_hal.cpp until they are fixed.
+LOCAL_CFLAGS += -Wno-error=implicit-fallthrough
 LOCAL_SRC_FILES := \
     hidl_struct_util.cpp \
     hidl_sync_util.cpp \