toradex apalis/colibri: extend CONFIG_SYS_MALLOC_F_LEN

Extend size of the malloc() pool for use before relocation, from 0x400
(default one) to 0x2000 (CONFIG_SYS_MALLOC_F_LEN=0x2000),
as adding of DM_FLAG_PRE_RELOC flag to simple-bus driver introduced a
regression on multiple boards, because of more intensive usage of malloc()
pool and therefore a broken boot as the size of pool isn't sufficient.

Fixes: 3a7c45f6a7 ("simple-bus: add DM_FLAG_PRE_RELOC flag to simple-bus")
Signed-off-by: Igor Opaniuk <igor.opaniuk@toradex.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
diff --git a/configs/colibri_t30_defconfig b/configs/colibri_t30_defconfig
index 2d12fc1..99be278 100644
--- a/configs/colibri_t30_defconfig
+++ b/configs/colibri_t30_defconfig
@@ -1,6 +1,7 @@
 CONFIG_ARM=y
 CONFIG_TEGRA=y
 CONFIG_SYS_TEXT_BASE=0x80110000
+CONFIG_SYS_MALLOC_F_LEN=0x2000
 CONFIG_NR_DRAM_BANKS=2
 CONFIG_TEGRA30=y
 CONFIG_TARGET_COLIBRI_T30=y