The default value of CONFIG_SYS_MALLOC_F_LEN is defined by ./Kconfig
as 0x400.  Each defconfig or Kconfig need not repeat the same value.
Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: NStephen Warren <swarren@wwwdotorg.org>
Reviewed-by: NSimon Glass <sjg@chromium.org>
Acked-by: NRobert Baldyga <r.baldyga@samsung.com>