Revert "arm: Remove d2net_v2 defconfig file"

Upon further review when populating README.scrapyard, d2net_v2 is a
variant on net2big_v2 and not just an orphan config.  To help in the
future also add this to board/LaCie/net2big_v2/MAINTAINERS which needed
a little consolidation anyhow.

This reverts commit 1363740e.

Cc: Simon Guinot <simon.guinot@sequanux.org>
Cc: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Rini <trini@konsulko.com>

board/LaCie/net2big_v2/MAINTAINERS

 NET2BIG_V2 BOARD
-#M:	-
+M:	Simon Guinot <simon.guinot@sequanux.org>
 S:	Maintained
 F:	board/LaCie/net2big_v2/
 F:	include/configs/lacie_kw.h
 F:	configs/d2net_v2_defconfig
-
-NET2BIG_V2 BOARD
-M:	Simon Guinot <simon.guinot@sequanux.org>
-S:	Maintained
 F:	configs/net2big_v2_defconfig

configs/d2net_v2_defconfig

+CONFIG_ARM=y
+CONFIG_KIRKWOOD=y
+CONFIG_TARGET_NET2BIG_V2=y
+CONFIG_SYS_EXTRA_OPTIONS="D2NET_V2"
+# CONFIG_CMD_IMLS is not set
+# CONFIG_CMD_FLASH is not set
+# CONFIG_CMD_SETEXPR is not set
+CONFIG_SPI_FLASH=y