adb: Retry io in case of interrupt

io_submit sleeps waiting for the gadget
to be enabled. Currently if that sleep
is interrupted it will shut down adb,
causing it to have to start back up again.

Rather than return EINTR if interrupted,
io_submit actually completes and the EINTR
is found later when looking through events.
Since an io that is interrupted will be
small anyway, add a loop to retry small ios.

Also upgrade aio logs in accordance with
their importance.

Fixes: 75981904
Test: adb works, logs show successful interrupt handling
Change-Id: I35973fce130ee849ce59fef80d15b65afb816ba4
(cherry picked from commit 0a2c7acbf1c92b69b4235af4676c9ba60fee219a)
1 file changed