Correctly specify treeboot based image entrypoint.  Currently makefile uses
$(ENTRYPOINT) which isn't defined anywhere.  Each board port sets
entrypoint-$(CONFIG_BOARD_NAME) instead.
Without this patch I cannot boot Ocotea (PPC440GX eval board) anymore.  I
was getting random "OS panic" errors from OpenBIOS for a while, but with
current kernel I get them all the time (probably because image became
bigger).
Signed-off-by: Eugene Surovegin <ebs@ebshome.net>
Acked-by: Tom Rini <trini@kernel.crashing.org>
Cc: Matt Porter <mporter@kernel.crashing.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
                skip=64 bs=1k
 
 $(images)/zImage-TREE: $(obj)/zvmlinux $(MKTREE)
-       $(MKTREE) $(obj)/zvmlinux $(images)/zImage.$(end-y) $(ENTRYPOINT)
+       $(MKTREE) $(obj)/zvmlinux $(images)/zImage.$(end-y) $(entrypoint-y)
 
 $(images)/zImage.initrd-TREE: $(obj)/zvmlinux.initrd $(MKTREE)
        $(MKTREE) $(obj)/zvmlinux.initrd $(images)/zImage.initrd.$(end-y) \
-               $(ENTRYPOINT)
+               $(entrypoint-y)
 
 $(images)/zImage-PPLUS: $(obj)/zvmlinux $(MKPREP) $(MKBUGBOOT)
        $(MKPREP) -pbp $(obj)/zvmlinux $(images)/zImage.$(end-y)