Resurrect Cobalt support for 2.6.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/cobalt/int-handler.S b/arch/mips/cobalt/int-handler.S
index 1a21dec..f92608e 100644
--- a/arch/mips/cobalt/int-handler.S
+++ b/arch/mips/cobalt/int-handler.S
@@ -18,8 +18,8 @@
 		SAVE_ALL
 		CLI
 
-		la	ra, ret_from_irq
-		move	a1, sp
+		PTR_LA	ra, ret_from_irq
+		move	a0, sp
 		j	cobalt_irq
 
 		END(cobalt_handle_int)