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/stv0991_defconfig b/configs/stv0991_defconfig
index 7ca2767..c728182 100644
--- a/configs/stv0991_defconfig
+++ b/configs/stv0991_defconfig
@@ -5,6 +5,7 @@
 CONFIG_SYS_EXTRA_OPTIONS="STV0991"
 CONFIG_BOOTDELAY=3
 # CONFIG_DISPLAY_CPUINFO is not set
+# CONFIG_DISPLAY_BOARDINFO is not set
 CONFIG_SYS_PROMPT="STV0991> "
 CONFIG_AUTOBOOT_KEYED=y
 CONFIG_AUTOBOOT_PROMPT="Hit SPACE in %d seconds to stop autoboot.\n"