update to new libbase ver

Most other packages have done this already.  Update this one too.

BUG=None
TEST=`emerge-x86-alex cros_boot_mode` worked
TEST=`cros_run_unit_tests --board x86-alex -p cros_boot_mode` worked

Change-Id: If778eba9c5955d04da34ccdb91499edb5fba89b2
Reviewed-on: https://gerrit.chromium.org/gerrit/22528
Reviewed-by: Will Drewry <wad@chromium.org>
Commit-Ready: Mike Frysinger <vapier@chromium.org>
Tested-by: Mike Frysinger <vapier@chromium.org>
diff --git a/Makefile b/Makefile
index d19ea02..4c240af 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,4 @@
-# Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
+# Copyright (c) 2012 The Chromium OS Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 #
@@ -7,7 +7,7 @@
 # Pull in chromium os defaults
 include common.mk
 
-BASE_VER = 85268
+BASE_VER ?= 125070
 PC_DEPS = libchrome-$(BASE_VER)
 PC_CFLAGS := $(shell $(PKG_CONFIG) --cflags $(PC_DEPS))
 PC_LIBS := $(shell $(PKG_CONFIG) --libs $(PC_DEPS))