media: ivsc: Add ACPI dependency

The IVSC driver only works in ACPI systems so make it depend on ACPI.

Compiling it elsewhere has little if any value.

Reported-by: Randy Dunlap <rdunlap@infradead.org>
Fixes: 29006e19 ("media: pci: intel: ivsc: Add CSI submodule")
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Tested-by: Randy Dunlap <rdunlap@infradead.org> # build-tested
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>