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/odroid-c2_defconfig b/configs/odroid-c2_defconfig
index ee70df0..6307abc 100644
--- a/configs/odroid-c2_defconfig
+++ b/configs/odroid-c2_defconfig
@@ -4,6 +4,7 @@
 CONFIG_TARGET_ODROID_C2=y
 CONFIG_IDENT_STRING=" odroid-c2"
 CONFIG_DEFAULT_DEVICE_TREE="meson-gxbb-odroidc2"
+# CONFIG_DISPLAY_CPUINFO is not set
 CONFIG_HUSH_PARSER=y
 # CONFIG_CMD_BDI is not set
 # CONFIG_CMD_IMI is not set