configs: am65x_hs_evm_a53: Increase malloc pool before relocation

The malloc pool used before relocation is getting tight leading to
out of memory errors doing certain DM-related calls. Since we are
running the A53 SPL out of DDR let's just go ahead and bump its size
as used in U-Boot proper as well as SPL (via Kconfig default value)
from 8KB to 32KB.

Signed-off-by: Andreas Dannenberg <dannenberg@ti.com>
Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>
Acked-by: Andrew F. Davis <afd@ti.com>
diff --git a/configs/am65x_hs_evm_a53_defconfig b/configs/am65x_hs_evm_a53_defconfig
index e619b79..7d7a673 100644
--- a/configs/am65x_hs_evm_a53_defconfig
+++ b/configs/am65x_hs_evm_a53_defconfig
@@ -3,7 +3,7 @@
 CONFIG_TI_SECURE_DEVICE=y
 CONFIG_SPL_LIBCOMMON_SUPPORT=y
 CONFIG_SPL_LIBGENERIC_SUPPORT=y
-CONFIG_SYS_MALLOC_F_LEN=0x2000
+CONFIG_SYS_MALLOC_F_LEN=0x8000
 CONFIG_SOC_K3_AM6=y
 CONFIG_TARGET_AM654_A53_EVM=y
 CONFIG_SPL_MMC_SUPPORT=y