Suppress unused-parameter warnings in power and loc_api_v02.

Change-Id: I9d21e4779f26e83b309681928ce8521cbbc83056
diff --git a/common/power/Android.mk b/common/power/Android.mk
index 4755ab9..380190a 100644
--- a/common/power/Android.mk
+++ b/common/power/Android.mk
@@ -47,6 +47,8 @@
     LOCAL_CFLAGS += -DEXTRA_POWERHAL_HINTS
 endif
 
+LOCAL_CFLAGS += -Wno-unused-parameter
+
 LOCAL_MODULE := power.$(patsubst %f,%,$(subst _eas,,$(subst aosp_,,$(TARGET_PRODUCT))))
 LOCAL_MODULE_TAGS := optional
 include $(BUILD_SHARED_LIBRARY)
diff --git a/location/loc_api/loc_api_v02/Android.mk b/location/loc_api/loc_api_v02/Android.mk
index 2f9ce80..696882b 100644
--- a/location/loc_api/loc_api_v02/Android.mk
+++ b/location/loc_api/loc_api_v02/Android.mk
@@ -32,6 +32,7 @@
 
 LOCAL_CFLAGS += \
     -fno-short-enums \
+    -Wno-unused-parameter \
     -D_ANDROID_
 
 LOCAL_COPY_HEADERS_TO:= libloc_api_v02/