binder_ndk: support fixed-size arrays

std::array<T,N> types are handled in AParcel_readData/writeData helper
APIs.

A fixed-size array is serialized just like a normal vector.

Bug: 207087196
Test: CtsNdkBinderTestCases
Change-Id: I52b3cdc6192af893ff2e22c190de41a9ae1ab80e
2 files changed