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/mvebu_db-88f7040_defconfig b/configs/mvebu_db-88f7040_defconfig
index 4d68bdc..8495792 100644
--- a/configs/mvebu_db-88f7040_defconfig
+++ b/configs/mvebu_db-88f7040_defconfig
@@ -5,6 +5,7 @@
 CONFIG_DEFAULT_DEVICE_TREE="armada-7040-db"
 CONFIG_AHCI=y
 # CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set
+# CONFIG_DISPLAY_CPUINFO is not set
 # CONFIG_CMD_IMLS is not set
 # CONFIG_CMD_FLASH is not set
 CONFIG_CMD_SF=y