configs: am65x_evm_r5: All sysfw to be loaded via MMC

Enable all the relevant configs that enables support for loading
sysfw via MMC.

Signed-off-by: Andreas Dannenberg <dannenberg@ti.com>
diff --git a/configs/am65x_evm_r5_defconfig b/configs/am65x_evm_r5_defconfig
index 5abd686..e3eb0d9 100644
--- a/configs/am65x_evm_r5_defconfig
+++ b/configs/am65x_evm_r5_defconfig
@@ -3,7 +3,7 @@
 CONFIG_SPL_GPIO_SUPPORT=y
 CONFIG_SPL_LIBCOMMON_SUPPORT=y
 CONFIG_SPL_LIBGENERIC_SUPPORT=y
-CONFIG_SYS_MALLOC_F_LEN=0x2000
+CONFIG_SYS_MALLOC_F_LEN=0x55000
 CONFIG_SOC_K3_AM6=y
 CONFIG_TARGET_AM654_R5_EVM=y
 CONFIG_SPL_MMC_SUPPORT=y
@@ -20,6 +20,7 @@
 CONFIG_SPL_TEXT_BASE=0x41c00000
 CONFIG_SPL_STACK_R=y
 CONFIG_SPL_SEPARATE_BSS=y
+CONFIG_SPL_EARLY_BSS=y
 CONFIG_SPL_I2C_SUPPORT=y
 CONFIG_SPL_DM_MAILBOX=y
 CONFIG_SPL_DM_RESET=y
@@ -89,3 +90,4 @@
 CONFIG_TIMER=y
 CONFIG_SPL_TIMER=y
 CONFIG_OMAP_TIMER=y
+CONFIG_FS_FAT_MAX_CLUSTSIZE=16384