config: mtl: set KDTEST module_type to 8

KDTEST module_type should be 8

Signed-off-by: Libin Yang <libin.yang@intel.com>

Author: libinyang

config/mtl.toml

@@ -373,7 +373,7 @@ count = 16
 	instance_count = "1"
 	domain_types = "0"
 	load_type = "0"
-	module_type = "9"
+	module_type = "8"
 	auto_start = "0"
 	sched_caps = [1, 0x00008000]