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/hikey_defconfig b/configs/hikey_defconfig
index 3901dfe..88085ad 100644
--- a/configs/hikey_defconfig
+++ b/configs/hikey_defconfig
@@ -2,6 +2,7 @@
 CONFIG_SYS_MALLOC_F_LEN=0x2000
 CONFIG_IDENT_STRING="hikey"
 CONFIG_DEFAULT_DEVICE_TREE="hi6220-hikey"
+# CONFIG_DISPLAY_CPUINFO is not set
 CONFIG_HUSH_PARSER=y
 # CONFIG_CMD_IMLS is not set
 CONFIG_CMD_MMC=y