configs: am64x_evm_*_defconfig: Enable configs to support eMMC boot

Enable configs to support eMMC boot.
Signed-off-by: NKishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: NAswath Govindraju <a-govindraju@ti.com>
Signed-off-by: NLokesh Vutla <lokeshvutla@ti.com>
Link: https://lore.kernel.org/r/20210726152807.22991-6-a-govindraju@ti.com

configs/am64x_evm_a53_defconfig

@@ -88,6 +88,7 @@ CONFIG_DM_MMC=y
 CONFIG_MMC_HS200_SUPPORT=y
 CONFIG_SPL_MMC_HS200_SUPPORT=y
 CONFIG_MMC_HS400_SUPPORT=y
+CONFIG_SUPPORT_EMMC_BOOT=y
 CONFIG_SPL_MMC_HS400_SUPPORT=y
 CONFIG_MMC_SDHCI=y
 CONFIG_MMC_SDHCI_ADMA=y

configs/am64x_evm_r5_defconfig

@@ -33,6 +33,8 @@ CONFIG_SPL_SIZE_LIMIT_SUBTRACT_GD=y
 CONFIG_SPL_SIZE_LIMIT_SUBTRACT_MALLOC=y
 CONFIG_SPL_SYS_REPORT_STACK_F_USAGE=y
 CONFIG_SPL_BOARD_INIT=y
+CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_USE_SECTOR=y
+CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR=0x400
 CONFIG_SPL_SYS_MALLOC_SIMPLE=y
 CONFIG_SPL_STACK_R=y
 CONFIG_SPL_SEPARATE_BSS=y