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/M5235EVB_defconfig b/configs/M5235EVB_defconfig
index 28c7f20..15a7f1f 100644
--- a/configs/M5235EVB_defconfig
+++ b/configs/M5235EVB_defconfig
@@ -2,6 +2,7 @@
 CONFIG_TARGET_M5235EVB=y
 CONFIG_SYS_TEXT_BASE=0xFFE00000
 CONFIG_BOOTDELAY=1
+# CONFIG_DISPLAY_BOARDINFO is not set
 CONFIG_SYS_PROMPT="-> "
 # CONFIG_CMD_LOADB is not set
 # CONFIG_CMD_LOADS is not set