event: Add a script to decode the event-spy list

2022-03-10T13:28:36Z

For debugging and dicoverability it is useful to be able to see a list of each event spy in a U-Boot ELF file. Add a script which shows this, along with the event type and the source location. This makes events a little easier to use than weak functions, for example. Add a basic sandbox test as well. We could provide a test for other boards, but for now, few use events. Signed-off-by: Simon Glass

u-boot.git/test/py/tests/test_event_dump.py, branch v2022.10-rc2

event: Add a script to decode the event-spy list