cpu/intel/model_6fx: Add Conroe-L to cpu_device_id list

Tested with Intel® Celeron® Processor 420.

Change-Id: I63d308477a22a9e55ceed1b6b36e63a3044c2354
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/18057
Tested-by: build bot (Jenkins)
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>

src/cpu/intel/model_6fx/model_6fx_init.c

@@ -177,6 +177,7 @@ static struct cpu_device_id cpu_table[] = {
 	{ X86_VENDOR_INTEL, 0x06fa }, /* Intel Core 2 Solo/Core Duo */
 	{ X86_VENDOR_INTEL, 0x06fb }, /* Intel Core 2 Solo/Core Duo */
 	{ X86_VENDOR_INTEL, 0x06fd }, /* Intel Core 2 Solo/Core Duo */
+	{ X86_VENDOR_INTEL, 0x10661 }, /* Intel Core 2 Celeron Conroe-L */
 	{ X86_VENDOR_INTEL, 0x10676 }, /* Core2 Duo E8200 */
 	{ 0, 0 },
 };