staging: vchiq_arm: remove space after open '('

Fix checkpatch error "ERROR: space prohibited after that open
parenthesis '('" in vchiq_arm.c:563.

Signed-off-by: Mario Balan <mario.balan@gmail.com>
Acked-by: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>