Revert^4: Change command-line flags of hiddenapi

The `hiddenapi` build tool now reads a dex file from one filename
and writes a modified dex file to another. Change the build rule
to reflect it.

This reverts commit d8c427fb.

Change-Id: Ic9a4188a65f7a6fb28edae1aeda7422e93800c58
Test: m