x86: Enable multi-core init for Minnowboard MAX

Enable the CPU uclass and Simple Firmware interface for Minnowbaord MAX. This
enables multi-core support in Linux.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
diff --git a/configs/minnowmax_defconfig b/configs/minnowmax_defconfig
index c59f4ac..426fb52 100644
--- a/configs/minnowmax_defconfig
+++ b/configs/minnowmax_defconfig
@@ -8,3 +8,7 @@
 CONFIG_FRAMEBUFFER_VESA_MODE_11A=y
 CONFIG_MMCONF_BASE_ADDRESS=0xe0000000
 CONFIG_HAVE_INTEL_ME=y
+CONFIG_GENERATE_SFI_TABLE=y
+CONFIG_CPU=y
+CONFIG_CMD_CPU=y
+CONFIG_SMP=y