staging: vc04_services: remove BCM2835_VCHIQ_SUPPORT_MEMDUMP

BCM2835_VCHIQ_SUPPORT_MEMDUMP lets you look through any user memory.
That's too big of an information leak from a security perspective.  The
debugging dumps need to be more specific to this driver.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>