imx8qxp_mek: Disable CONFIG_DISPLAY_CPUINFO

Due to revert of commit c0434407b595, this board does not build
any more. Disable CONFIG_DISPLAY_CPUINFO for v2018.11 release.

This commit should be reverted after v2018.11 release.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/configs/imx8qxp_mek_defconfig b/configs/imx8qxp_mek_defconfig
index 1588416..a45f3ba 100644
--- a/configs/imx8qxp_mek_defconfig
+++ b/configs/imx8qxp_mek_defconfig
@@ -6,6 +6,7 @@
 CONFIG_TARGET_IMX8QXP_MEK=y
 CONFIG_NR_DRAM_BANKS=3
 CONFIG_BOOTDELAY=3
+# CONFIG_DISPLAY_CPUINFO is not set
 CONFIG_CMD_CPU=y
 # CONFIG_CMD_IMPORTENV is not set
 CONFIG_CMD_CLK=y