ramips: fix wifi EEPROM extraction on DIR-615-Dx models

Patch from #12636.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>

SVN-Revision: 34876

target/linux/ramips/base-files/etc/hotplug.d/firmware/10-rt2x00-eeprom

@@ -32,7 +32,8 @@ case "$FIRMWARE" in
 	case $board in
 	dir-300-b1 | \
 	dir-600-b1 | \
-	dir-600-b2)
+	dir-600-b2 | \
+	dir-615-d)
 		rt2x00_eeprom_extract "devdata" 16384 272
 		;;
 
@@ -40,7 +41,6 @@ case "$FIRMWARE" in
 		rt2x00_eeprom_extract "devdata" 0 272
 		;;
 
-	dir-615-d | \
 	rt-n10-plus | \
 	rt-g32-b1)
 		rt2x00_eeprom_extract "devconf" 0 272