cxl/core: Fix cxl_probe_component_regs() error message

Fix a '\n' vs '/n' typo.

Fixes: 08422378 ("cxl/pci: Add HDM decoder capabilities")
Acked-by: Ben Widawsky <ben.widawsky@intel.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/164298418268.3018233.17790073375430834911.stgit@dwillia2-desk3.amr.corp.intel.com


Signed-off-by: Dan Williams <dan.j.williams@intel.com>