Convert CONFIG_FSL_SATA_V2 to Kconfig

This converts the following to Kconfig:
   CONFIG_FSL_SATA_V2

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/configs/P5040DS_SPIFLASH_defconfig b/configs/P5040DS_SPIFLASH_defconfig
index 1e1a2f8..0c9d564 100644
--- a/configs/P5040DS_SPIFLASH_defconfig
+++ b/configs/P5040DS_SPIFLASH_defconfig
@@ -46,6 +46,7 @@
 CONFIG_USE_ETHPRIME=y
 CONFIG_ETHPRIME="FM1@DTSEC1"
 CONFIG_DM=y
+CONFIG_FSL_SATA_V2=y
 CONFIG_SYS_SATA_MAX_DEVICE=2
 CONFIG_FSL_CAAM=y
 CONFIG_DDR_ECC=y