dm: mmc: Correct Kconfig condition for SPL_DM_MMC_OPS

This should depend on SPL_DM_MMC, not SPL_DM. For it and update the only
affected board's defconfig.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/mmc/Kconfig b/drivers/mmc/Kconfig
index 51a87cd..ecf5a92 100644
--- a/drivers/mmc/Kconfig
+++ b/drivers/mmc/Kconfig
@@ -43,7 +43,7 @@
 
 config SPL_DM_MMC_OPS
 	bool "Support MMC controller operations using Driver Model in SPL"
-	depends on SPL_DM && DM_MMC_OPS
+	depends on SPL_DM_MMC && DM_MMC_OPS
 	default y
 	help
 	  Driver model provides a means of supporting device operations. This