Fix readFromParcel in every backend am: 9e85bce7f9 am: e498eb9808 am: 53d0d1abef

Original change: https://android-review.googlesource.com/c/platform/system/tools/aidl/+/1688277

Change-Id: Id6c8da6cbbd6f4aa954190b4c6f459b418bd08b7