winky: mosys support winky ram id

mosys don't have winky board ram id.
ram id has 3bits.
1st bit is for ram size. 2 bits are for vendor/type.
ex) 1XX : 2Gbytes (DIMM Count should be 1)
    0XX : 4Gbytes (DIMM Count should be 2)

BUG=chrome-os-partner:30500
TEST=emerge-winky mosys
     run mosys on winky (PV1)
     mosys memory spd print all
     0 | DDR3 | SO-DIMM
     0 | 1-78: Samsung | 00000000 | K4B4G1646Q-HYK0
     0 | 2048 | 1 | 64
     0 | DDR3-800, DDR3-1066, DDR3-1333, DDR3-1600

Change-Id: Ic03b5126363c7e4ed758ba7dbeb435e76549bfd0
Reviewed-on: https://chromium-review.googlesource.com/207512
Reviewed-by: Jongpil Jung <jongpil19.jung@samsung.com>
Tested-by: Jongpil Jung <jongpil19.jung@samsung.com>
Reviewed-by: David Hendricks <dhendrix@chromium.org>
Commit-Queue: Jongpil Jung <jongpil19.jung@samsung.com>
(cherry picked from commit f2a11833d5f69f97ab62a59ae80f7020c3ea3f8c)
Reviewed-on: https://chromium-review.googlesource.com/207527
1 file changed