SIO: Add smsc/sch4037 superio support

Change-Id: I3b113a27541b8efd096f3bd44e6621344ec916a5
Signed-off-by: Kerry Sheh <kerry.she@amd.com>
Signed-off-by: Kerry Sheh <shekairui@gmail.com>
Reviewed-on: http://review.coreboot.org/562
Tested-by: build bot (Jenkins)
Reviewed-by: Marc Jones <marcj303@gmail.com>
7 files changed