ppc4xx: ppc440-generic-ALL: Fix out of tree build v2

This patch solves the problems compiling ml507, v5fx30teval and
ppc440-generic out of tree.

Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@uam.es>
diff --git a/board/xilinx/ppc440-generic/.gitignore b/board/xilinx/ppc440-generic/.gitignore
deleted file mode 100644
index 6896ef6..0000000
--- a/board/xilinx/ppc440-generic/.gitignore
+++ /dev/null
@@ -1 +0,0 @@
-/config.mk
diff --git a/board/xilinx/ppc440-generic/Makefile b/board/xilinx/ppc440-generic/Makefile
index f7405a8..bf0a6ba 100644
--- a/board/xilinx/ppc440-generic/Makefile
+++ b/board/xilinx/ppc440-generic/Makefile
@@ -35,9 +35,9 @@
 
 LIB	= $(obj)lib$(BOARD).a
 
-COBJS	+= $(SRCTREE)/board/xilinx/ppc440-generic/xilinx_ppc440_generic.o
+COBJS	+= ../../xilinx/ppc440-generic/xilinx_ppc440_generic.o
 
-SOBJS	+= $(SRCTREE)/board/xilinx/ppc440-generic/init.o
+SOBJS	+= ../../xilinx/ppc440-generic/init.o
 
 SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
 OBJS	:= $(addprefix $(obj),$(COBJS))
diff --git a/board/xilinx/ppc440-generic/config.mk b/board/xilinx/ppc440-generic/config.mk
new file mode 100644
index 0000000..8d220da
--- /dev/null
+++ b/board/xilinx/ppc440-generic/config.mk
@@ -0,0 +1,25 @@
+#
+# (C) Copyright 2008
+# Ricardo Ribalda-Universidad Autonoma de Madrid-ricardo.ribalda@uam.es
+# Work supported by Qtechnology http://www.qtec.com
+#
+# See file CREDITS for list of people who contributed to this
+# project.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 2 of
+# the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+# MA 02111-1307 USA
+#
+
+sinclude $(obj)/board/$(BOARDDIR)/config.tmp