Kirkwood: add lschlv2 and lsxhl board support

This patch adds support for both the Linkstation Live (LS-CHLv2) and
Linkstation Pro (LS-XHL) by Buffalo.

Signed-off-by: Michael Walle <michael@walle.cc>
Cc: Prafulla Wadaskar <prafulla@marvell.com>
diff --git a/boards.cfg b/boards.cfg
index 7e1241d..d33ff27 100644
--- a/boards.cfg
+++ b/boards.cfg
@@ -138,6 +138,8 @@
 calimain                     arm         arm926ejs   calimain            omicron        davinci
 pogo_e02                     arm         arm926ejs   -                   cloudengines   kirkwood
 dns325                       arm         arm926ejs   -                   d-link         kirkwood
+lschlv2                      arm         arm926ejs   lsxl                buffalo        kirkwood    lsxl:LSCHLV2
+lsxhl                        arm         arm926ejs   lsxl                buffalo        kirkwood    lsxl:LSXHL
 km_kirkwood                  arm         arm926ejs   km_arm              keymile        kirkwood    km_kirkwood:KM_KIRKWOOD,KM_DISABLE_PCI
 km_kirkwood_pci              arm         arm926ejs   km_arm              keymile        kirkwood    km_kirkwood:KM_KIRKWOOD_PCI,KM_RECONFIG_XLX
 mgcoge3un                    arm         arm926ejs   km_arm              keymile        kirkwood