snow: MP1.2 platfrom version is MPx16

Previously all MP variants of snow returned MP, but
there are scenarios where we want to tell apart
types of MP. Specifically MP1.2 changes from x8 to x16
memory and other userspace applications can now use
mosys platform version to query the board type.

BUG=chrome-os-partner:22582
TEST=run mosys platform version on x16 and x8 board
and verify x16 reports MPx16 and x8 board shows MP

Change-Id: I51ef2a3104355416bca93ee7fcea3c960c977969
Reviewed-on: https://chromium-review.googlesource.com/169332
Reviewed-by: David Hendrix <dhendrix@chromium.org>
Commit-Queue: Katie Roberts-Hoffman <katierh@chromium.org>
Tested-by: Katie Roberts-Hoffman <katierh@chromium.org>
(cherry picked from commit 23a74394cfaa34a8e6ad292975d15bc653246995)
Reviewed-on: https://chromium-review.googlesource.com/170361
Reviewed-by: Katie Roberts-Hoffman <katierh@chromium.org>
1 file changed