Check for data buffer size while marshalling parcel

Checking for internal buffer size which should handle cases where
parcel has position set beyond datasize and data size is actually
returning the data position.
Test: m && acloud delete --all && acloud create --local-image --local-instance
	&& atest -c CtsNdkBinderTestCases
Test: m binder_parcel_fuzzer &&
out/host/linux-x86/fuzz/x86_64/binder_parcel_fuzzer/binder_parcel_fuzzer
Bug: 264739302

Change-Id: Ib6c49fde1c1a56bae3932ce9af731a200b8a8faa