staging: vchiq: Have vchiu_queue_init() return 0 on success.

It could be confusing to return 1 on success and 0 on error
given the style elswhere.

Signed-off-by: Marcelo Diop-Gonzalez <marcgonzalez@google.com>
Link: https://lore.kernel.org/r/20191105222756.25369-1-marcgonzalez@google.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>