spi: Kconfig: Mark MXS_SPI has DEPRECATED

Mark MXS_SPI as DEPRECATED, this so the resulting build shows
warning for broken configuration enabled and associated code
will remove in v2019.07 release.

Cc: Marek Vasut <marex@denx.de>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Cc: Michael Trimarchi <michael@amarulasolutions.com>
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
[trini: Switch to DEPRECATED]
Signed-off-by: Tom Rini <trini@konsulko.com>
1 file changed