Revert "staging: octeon: remove typedef in enum cvmx_spi_mode_t"

This reverts commit 7bebd832.

The patch series that removed typedefs from the octeon driver was not
actually built properly, and broke the build (it's hard to test-build
this driver for some reason.)  Remove them all at this point in time to
make sure the build works properly.

Link: https://lore.kernel.org/r/32e9ad3c-191e-4dd1-b1cc-07f7b93c3f28@roeck-us.net


Reported-by: Guenter Roeck <linux@roeck-us.net>
Cc: Oliver Crumrine <ozlinux@hotmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>