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/xilinx-ppc405-generic_defconfig b/configs/xilinx-ppc405-generic_defconfig
index a17cd4f..352b715 100644
--- a/configs/xilinx-ppc405-generic_defconfig
+++ b/configs/xilinx-ppc405-generic_defconfig
@@ -7,6 +7,7 @@
 CONFIG_SYS_EXTRA_OPTIONS="SYS_TEXT_BASE=0x04000000,RESET_VECTOR_ADDRESS=0x04100000"
 CONFIG_BOOTDELAY=5
 CONFIG_VERSION_VARIABLE=y
+# CONFIG_DISPLAY_BOARDINFO is not set
 CONFIG_HUSH_PARSER=y
 CONFIG_SYS_PROMPT="xlx-ppc405:/# "
 # CONFIG_CMD_IMLS is not set