x86: qemu: Create a little more room for U-Boot

We want to enable some of the more interesting bootstd features. Move SPL
up to create some room for the larger U-Boot binary. Also disable
microcode since this is not needed

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
diff --git a/configs/qemu-x86_64_defconfig b/configs/qemu-x86_64_defconfig
index 6a539a8..7e9f908 100644
--- a/configs/qemu-x86_64_defconfig
+++ b/configs/qemu-x86_64_defconfig
@@ -6,12 +6,13 @@
 CONFIG_MAX_CPUS=2
 CONFIG_SPL_DM_SPI=y
 CONFIG_DEFAULT_DEVICE_TREE="qemu-x86_i440fx"
-CONFIG_SPL_TEXT_BASE=0xfffd0000
+CONFIG_SPL_TEXT_BASE=0xfffd8000
 CONFIG_DEBUG_UART_BASE=0x3f8
 CONFIG_DEBUG_UART_CLOCK=1843200
 CONFIG_X86_RUN_64BIT=y
 CONFIG_TARGET_QEMU_X86_64=y
 CONFIG_DEBUG_UART=y
+# CONFIG_HAVE_MICROCODE is not set
 CONFIG_SMP=y
 CONFIG_GENERATE_PIRQ_TABLE=y
 CONFIG_GENERATE_MP_TABLE=y