staging: vchiq_arm: drop ftrace-like logging

This addresses the warnings reported by checkpatch:
WARNING: Unnecessary ftrace-like logging - prefer using ftrace

Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Link: https://lore.kernel.org/r/1621105859-30215-10-git-send-email-stefan.wahren@i2se.com


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