powerpc: Add cputable entry for POWER7

Add a cputable entry for the POWER7 processor.

Also tell firmware that we know about POWER7.

Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Joel Schopp <jschopp@austin.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
diff --git a/arch/powerpc/kernel/misc.S b/arch/powerpc/kernel/misc.S
index 7b91602..85cb6f3 100644
--- a/arch/powerpc/kernel/misc.S
+++ b/arch/powerpc/kernel/misc.S
@@ -116,3 +116,8 @@
 	mtlr	r0
 	mr	r3,r4
 	blr
+
+_GLOBAL(__setup_cpu_power7)
+_GLOBAL(__restore_cpu_power7)
+	/* place holder */
+	blr