doc: driver-model: Update SPI migration status

Update SPI drivers, driver model conversion status for
v2019.10 release.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
diff --git a/doc/driver-model/migration.rst b/doc/driver-model/migration.rst
index 75b8523..fd499fb 100644
--- a/doc/driver-model/migration.rst
+++ b/doc/driver-model/migration.rst
@@ -58,10 +58,8 @@
 
 No dm conversion yet::
 
-	drivers/spi/cf_spi.c
 	drivers/spi/fsl_espi.c
 	drivers/spi/lpc32xx_ssp.c
-	drivers/spi/mxs_spi.c
 	drivers/spi/sh_spi.c
 	drivers/spi/soft_spi_legacy.c
 
@@ -74,6 +72,7 @@
 	drivers/spi/fsl_dspi.c
 	drivers/spi/kirkwood_spi.c
 	drivers/spi/mxc_spi.c
+	drivers/spi/mxs_spi.c
 	drivers/spi/omap3_spi.c
 	drivers/spi/sh_qspi.c