mvgbe: support SoCs other than kirkwood

Rename all references to kirkwood in mvgbe symbols
throughout the whole codebase.

Signed-off-by: Albert Aribaud <albert.aribaud@free.fr>
Acked-by: Prafulla Wadaskar <prafulla@marvell.com>
Signed-off-by: Ben Warren <biggerbadderben@gmail.com>
12 files changed