common/Kconfig: Add DISPLAY_CPUINFO

Create a Kconfig entry for DISPLAY_CPUINFO and make it be the default
in certain architectures.  Migrate all config files.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/configs/thunderx_88xx_defconfig b/configs/thunderx_88xx_defconfig
index 9bbff6c..ace8104 100644
--- a/configs/thunderx_88xx_defconfig
+++ b/configs/thunderx_88xx_defconfig
@@ -3,6 +3,7 @@
 CONFIG_IDENT_STRING=" for Cavium Thunder CN88XX ARM v8 Multi-Core"
 CONFIG_DEFAULT_DEVICE_TREE="thunderx-88xx"
 CONFIG_BOOTDELAY=5
+# CONFIG_DISPLAY_CPUINFO is not set
 CONFIG_HUSH_PARSER=y
 CONFIG_SYS_PROMPT="ThunderX_88XX> "
 # CONFIG_CMD_IMLS is not set