sh: Allow optimized clear/copy page routines to be used on SH-2.

Presently these are restricted to SH-3 and SH-4, so we reorder the
ifdefs a bit to let other parts use these also.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
diff --git a/arch/sh/lib/clear_page.S b/arch/sh/lib/clear_page.S
index 3539123..8342bfb 100644
--- a/arch/sh/lib/clear_page.S
+++ b/arch/sh/lib/clear_page.S
@@ -27,11 +27,11 @@
 	mov	#0,r0
 	!
 1:
-#if defined(CONFIG_CPU_SH3)
-	mov.l	r0,@r4
-#elif defined(CONFIG_CPU_SH4)
+#if defined(CONFIG_CPU_SH4)
 	movca.l	r0,@r4
 	mov	r4,r1
+#else
+	mov.l	r0,@r4
 #endif
 	add	#32,r4
 	mov.l	r0,@-r4