Use -Werror in hardware/interfaces/dumpstate/1.0/default

Bug: 66996870
Test: build with WITH_TIDY=1
Change-Id: Ic91f44e7410fd5bd8d1231f886a526a5e21a2eae
diff --git a/dumpstate/1.0/default/Android.bp b/dumpstate/1.0/default/Android.bp
index 41ccd59..3ca19e8 100644
--- a/dumpstate/1.0/default/Android.bp
+++ b/dumpstate/1.0/default/Android.bp
@@ -7,6 +7,10 @@
         "DumpstateDevice.cpp",
         "service.cpp",
     ],
+    cflags: [
+        "-Wall",
+        "-Werror",
+    ],
 
     shared_libs: [
         "android.hardware.dumpstate@1.0",