Fix USB failure due to aoc_platform_device

aoc_service_read_timeout() and aoc_service_write_timeout() should get
the platform_device using aoc_service_dev.parent rather than the global
pointer aoc_platform_device.

This is more correct and avoids pointer corruption issue (still being
investigated).

BUG: 245657964
Signed-off-by: brucepo@google.com
Change-Id: I45a4bc85cb39c4d5d50324cdaa5d7e809f009d39
1 file changed