Add more const to 'instances' in registerAccessorProvider

The chars, the pointer to the chars, and the pointer to the pointers
should all be constant.

Test: m
Bug: 358427181
Change-Id: I0a54be61962cc1c445748e94f32ff583c88b162c

Author: devinmoore-goog

libs/binder/ndk/binder_rpc.cpp

@@ -104,8 +104,8 @@ struct OnDeleteProviderHolder {
 };
 
 ABinderRpc_AccessorProvider* ABinderRpc_registerAccessorProvider(
-        ABinderRpc_AccessorProvider_getAccessorCallback provider, const char** instances,
-        size_t numInstances, void* data,
+        ABinderRpc_AccessorProvider_getAccessorCallback provider,
+        const char* const* const instances, size_t numInstances, void* data,
         ABinderRpc_AccessorProviderUserData_deleteCallback onDelete) {
     if (provider == nullptr) {
         ALOGE("Null provider passed to ABinderRpc_registerAccessorProvider");

libs/binder/ndk/include_platform/android/binder_rpc.h

@@ -144,8 +144,9 @@ typedef void (*ABinderRpc_AccessorProviderUserData_deleteCallback)(void* _Nullab
  */
 ABinderRpc_AccessorProvider* _Nullable ABinderRpc_registerAccessorProvider(
         ABinderRpc_AccessorProvider_getAccessorCallback _Nonnull provider,
-        const char* _Nullable* _Nonnull instances, size_t numInstances, void* _Nullable data,
-        ABinderRpc_AccessorProviderUserData_deleteCallback _Nullable onDelete) __INTRODUCED_IN(36);
+        const char* _Nullable const* const _Nonnull instances, size_t numInstances,
+        void* _Nullable data, ABinderRpc_AccessorProviderUserData_deleteCallback _Nullable onDelete)
+        __INTRODUCED_IN(36);
 
 /**
  * Remove an ABinderRpc_AccessorProvider from libbinder. This will remove references