spl: Enable CONFIG_SPL_SYS_MALLOC_F where needed

Enable CONFIG_SPL_SYS_MALLOC_F for boards which have a non-zero value
for CONFIG_SPL_SYS_MALLOC_F_LEN

Note that the default is yes in most cases, so no changes are needed to
board defconfig options.

Signed-off-by: Simon Glass <sjg@chromium.org>
2 files changed