Add structs for fsi devices & drivers, and struct device conversion
functions.
Signed-off-by: NJeremy Kerr <jk@ozlabs.org>
Signed-off-by: NChris Bostic <cbostic@us.ibm.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>