constify JNINativeMethod function pointer tables

Change-Id: I4036c924958221cbc644724f8eb01c5de3cd7954
diff --git a/services/core/jni/com_android_server_input_InputManagerService.cpp b/services/core/jni/com_android_server_input_InputManagerService.cpp
index 7c5980a..0bb8403 100644
--- a/services/core/jni/com_android_server_input_InputManagerService.cpp
+++ b/services/core/jni/com_android_server_input_InputManagerService.cpp
@@ -1343,7 +1343,7 @@
 
 // ----------------------------------------------------------------------------
 
-static JNINativeMethod gInputManagerMethods[] = {
+static const JNINativeMethod gInputManagerMethods[] = {
     /* name, signature, funcPtr */
     { "nativeInit",
             "(Lcom/android/server/input/InputManagerService;Landroid/content/Context;Landroid/os/MessageQueue;)J",