mmc: sdhci-st: add FSP2(ppc476fpe) into depends for sdhci-st

shdci-st driver can be used for ppc476 fsp2 soc.
Signed-off-by: Ivan Mikhaylov <ivan@de.ibm.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

drivers/mmc/host/Kconfig

@@ -354,7 +354,7 @@ config MMC_MOXART
 
 config MMC_SDHCI_ST
 	tristate "SDHCI support on STMicroelectronics SoC"
-	depends on ARCH_STI
+	depends on ARCH_STI || FSP2
 	depends on MMC_SDHCI_PLTFM
 	select MMC_SDHCI_IO_ACCESSORS
 	help