Sort the split transfers to generate a determinate package

We split large apks and generated patches for them in parallel,
resulting in nondeterminate packages between different runs. This CL
sort the split transfers by target name first; and then add them
sequentially to the final transfer list.

Also fix a side effect where we may generate a wrong sha1 for split
ranges due to synchronization error.

Bug: 71770360
Bug: 71759418

Test: Generate the package several times, compare the log and the transfer list.
Change-Id: I2a49e22594d59ffaa98b11edc776be4e3c4c561f