Fix broken initialization of conswitchp for ARCH=ppc64

[David Gibson]

Paulus, please apply to the merge tree.

In the merge tree, commit 0458060c1c59c5378d8fb5daabe18cf4681c35cd
broke boot on some machines because the initialization of conswitchp
was moved to arch/powerpc/kernel/setup_64.c, but a corresponding copy
was not added to arch/ppc64/kernel/setup.c.  This patch fixes it.

Signed-off-by: David Gibson <dwg at au1.ibm.com>

Index: working-2.6/arch/ppc64/kernel/setup.c
===================================================================
--- working-2.6.orig/arch/ppc64/kernel/setup.c	2005-10-21 15:03:46.000000000 +1000
+++ working-2.6/arch/ppc64/kernel/setup.c	2005-10-21 15:34:30.000000000 +1000
@@ -1039,6 +1039,10 @@
 	/* initialize the syscall map in systemcfg */
 	setup_syscall_map();
 
+#ifdef CONFIG_DUMMY_CONSOLE
+	conswitchp = &dummy_con;
+#endif
+
 	ppc_md.setup_arch();
 
 	/* Use the default idle loop if the platform hasn't provided one. */

-- 
David Gibson			| I'll have my music baroque, and my code
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				| _way_ _around_!
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