Additionaly,
1. Run it as a python_binary_host so that it uses the hermetic python
toolchain
2. Fix an existing bug where if `board_info_txt` was empty, $^ would
evaluate to its own path, and it would try to parse the relevant
configuration from the wrong file
Bug: 196300985
Test: m out/target/product/vsoc_arm64/android-info.txt
Change-Id: Ie1e51a93041591829da4351dd57f37106e15d764
Adds a python script which checks the version of each radio image
added with the new add-radio-file-checked macro against a file
containing sha-1 -> version string mappings and the contents of
board-info.txt, so that the build can fail if board-info.txt and the
OTA images are out of sync.
Change-Id: Icb61dc2adefc240ced9059941582c23b629089c0