ramips: add DIR-615 D userspace support

Commit 7c8edac25f23c4fc14239fdc293caa1317649944 introduced new machine and
Makefile changes to build images for this target. However, without the userspace
bits a ramips machine can't use wifi as the necessary "eeprom" data is to be
extracted by a hotplug script; also, sysupgrade support and default led
configuration are missing.

An IRC user reported these changes allowed him to use wifi on his hardware.

Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>

SVN-Revision: 34331

target/linux/ramips/base-files/lib/ramips.sh

@@ -92,6 +92,9 @@ ramips_board_name() {
 	*"DIR-615 H1")
 		name="dir-615-h1"
 		;;
+	*"DIR-615 D")
+		name="dir-615-d"
+		;;
 	*"DIR-645")
 		name="dir-645"
 		;;