staging: vchiq_arm: balance braces for if-else statements

This fixes the following checkpatch notices in vchiq_arm:
CHECK: braces {} should be used on all arms of this statement

Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Link: https://lore.kernel.org/r/1621105859-30215-6-git-send-email-stefan.wahren@i2se.com


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