ARM: davinci: da850evm: Support DM_MMC

With the updated driver available to support DM_MMC, this patch
enables DM_MMC for da850evm.

Signed-off-by: Adam Ford <aford173@gmail.com>
diff --git a/board/davinci/da8xxevm/da850evm.c b/board/davinci/da8xxevm/da850evm.c
index 5583b45..e8ec553 100644
--- a/board/davinci/da8xxevm/da850evm.c
+++ b/board/davinci/da8xxevm/da850evm.c
@@ -204,6 +204,7 @@
 	return 0;
 }
 
+#ifndef CONFIG_DM_MMC
 #ifdef CONFIG_MMC_DAVINCI
 static struct davinci_mmc mmc_sd0 = {
 	.reg_base = (struct davinci_mmc_regs *)DAVINCI_MMC_SD0_BASE,
@@ -220,6 +221,7 @@
 	return davinci_mmc_init(bis, &mmc_sd0);
 }
 #endif
+#endif
 
 static const struct pinmux_config gpio_pins[] = {
 #ifdef CONFIG_USE_NOR
diff --git a/configs/da850evm_defconfig b/configs/da850evm_defconfig
index e81efe8..c30f396 100644
--- a/configs/da850evm_defconfig
+++ b/configs/da850evm_defconfig
@@ -43,6 +43,7 @@
 CONFIG_DA8XX_GPIO=y
 CONFIG_DM_I2C=y
 CONFIG_SYS_I2C_DAVINCI=y
+CONFIG_DM_MMC=y
 CONFIG_MTD_DEVICE=y
 CONFIG_MTD_PARTITIONS=y
 CONFIG_DM_SPI_FLASH=y