staging: vchiq_core: fix logic in poll_services_of_group

staging: vchiq_core: fix logic in poll_services_of_group

Commit "staging: vchiq_core: avoid indention in poll_services_of_group"
tries to reduce the indention, but the parts regarding the third if statement
breaks the logic. So restore them and prevent vchiq_test from hanging during
the ping test.

Fixes: 2f440843a7d4 ("staging: vchiq_core: avoid indention in poll_services_of_group")
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Link: https://lore.kernel.org/r/1622735405-9980-2-git-send-email-stefan.wahren@i2se.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>