soc/amd/stoneyridge: Change code to accommodate Merlin Falcon SOC

Stoney Ridge is family 15h models 70h-7Fh, Merlin Falcon is family 15h models
60h-6Fh. Add changes based on config parameter SOC_AMD_MERLINFALCON to make
the code  backward compatible with Merlin Falcon.

BUG=none.
TEST=Tested later with padmelon board.

Change-Id: I00fe832324500bcb07fca292a0a55f7258a2d82f
Signed-off-by: Richard Spiegel <richard.spiegel@silverbackltd.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/33624
Reviewed-by: Martin Roth <martinroth@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/soc/amd/stoneyridge/cpu.c

@@ -145,6 +145,7 @@ static struct device_operations cpu_dev_ops = {
 };
 
 static struct cpu_device_id cpu_table[] = {
+	{ X86_VENDOR_AMD, 0x660f01 },
 	{ X86_VENDOR_AMD, 0x670f00 },
 	{ 0, 0 },
 };