cxl/test: Mock acpi_table_parse_cedt()

Now that cxl_acpi has been converted to use the core ACPI CEDT sub-table
parser, update cxl_test to inject CFMWS and CHBS data directly into
cxl_acpi's handlers.

Cc: Alison Schofield <alison.schofield@intel.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Link: https://lore.kernel.org/r/163553711363.2509508.17428994087868269952.stgit@dwillia2-desk3.amr.corp.intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
diff --git a/drivers/cxl/acpi.c b/drivers/cxl/acpi.c
index 7820082..91e4072 100644
--- a/drivers/cxl/acpi.c
+++ b/drivers/cxl/acpi.c
@@ -283,6 +283,7 @@ static int add_host_bridge_uport(struct device *match, void *arg)
 }
 
 struct cxl_chbs_context {
+	struct device *dev;
 	unsigned long long uid;
 	resource_size_t chbcr;
 };
@@ -327,6 +328,7 @@ static int add_host_bridge_dport(struct device *match, void *arg)
 	}
 
 	ctx = (struct cxl_chbs_context) {
+		.dev = host,
 		.uid = uid,
 	};
 	acpi_table_parse_cedt(ACPI_CEDT_TYPE_CHBS, cxl_get_chbcr, &ctx);