common: Add DISPLAY_BOARDINFO

Create a Kconfig entry for DISPLAY_BOARDINFO 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/legoev3_defconfig b/configs/legoev3_defconfig
index 8b06408..8b01405 100644
--- a/configs/legoev3_defconfig
+++ b/configs/legoev3_defconfig
@@ -4,6 +4,7 @@
 CONFIG_BOOTDELAY=0
 CONFIG_VERSION_VARIABLE=y
 # CONFIG_DISPLAY_CPUINFO is not set
+# CONFIG_DISPLAY_BOARDINFO is not set
 CONFIG_HUSH_PARSER=y
 CONFIG_AUTOBOOT_KEYED=y
 CONFIG_AUTOBOOT_PROMPT="Autoboot in %d seconds - press 'l' to stop...\n"