habanalabs: cast to expected type

This patch fix the following sparse warning:

drivers/misc/habanalabs/goya/goya.c:3646:14: warning: incorrect type in
assignment (different address spaces)
drivers/misc/habanalabs/goya/goya.c:3646:14:    expected void *base
drivers/misc/habanalabs/goya/goya.c:3646:14:    got void [noderef] <asn:2> *

Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>