configs: j721e_evm_r5_defconfig: Increase early malloc size

Increase R5 SPL early malloc memory pool by ~7K to accommodate SPL USB
DFU boot requirements

Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>

configs/j721e_evm_r5_defconfig

@@ -3,7 +3,7 @@ CONFIG_ARCH_K3=y
 CONFIG_SPL_GPIO_SUPPORT=y
 CONFIG_SPL_LIBCOMMON_SUPPORT=y
 CONFIG_SPL_LIBGENERIC_SUPPORT=y
-CONFIG_SYS_MALLOC_F_LEN=0x55000
+CONFIG_SYS_MALLOC_F_LEN=0x70000
 CONFIG_SOC_K3_J721E=y
 CONFIG_TARGET_J721E_R5_EVM=y
 CONFIG_ENV_SIZE=0x20000