ls1012afrwy: Add ls1012afrwy revC board support.

LS1012AFRWY supports three board revisions.
Revision A and B board are collectively identified as revA/B,
Revision C board is identifies as revC.

Signed-off-by: Pramod Kumar <pramod.kumar_1@nxp.com>
[York S: revised commit message]
Reviewed-by: York Sun <york.sun@nxp.com>
2 files changed