configs: am65x_evm: Add CONFIG_SUPPORT_EMMC_BOOT

With CONFIG_SUPPORT_EMMC_BOOT moved to Kconfig, move it to defconfig
files.

Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
diff --git a/configs/am65x_evm_r5_defconfig b/configs/am65x_evm_r5_defconfig
index 69055d5..b475ace 100644
--- a/configs/am65x_evm_r5_defconfig
+++ b/configs/am65x_evm_r5_defconfig
@@ -73,6 +73,7 @@
 CONFIG_MISC=y
 CONFIG_K3_AVS0=y
 CONFIG_DM_MMC=y
+CONFIG_SUPPORT_EMMC_BOOT=y
 CONFIG_MMC_SDHCI=y
 CONFIG_SPL_MMC_SDHCI_ADMA=y
 CONFIG_MMC_SDHCI_AM654=y