powerpc/86xx: Run sbc310 USB fixup code only on the appropriate platform.

Patch to limit NEC fixup to SBC310, following similar patch to SBC610 by
Tony Breeds: 368a12117dd8abf6eaefa37c21ac313b517128b9

Signed-off-by: Martyn Welch <martyn.welch@gefanuc.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
diff --git a/arch/powerpc/platforms/86xx/gef_sbc310.c b/arch/powerpc/platforms/86xx/gef_sbc310.c
index 0f20172..ba3ce43 100644
--- a/arch/powerpc/platforms/86xx/gef_sbc310.c
+++ b/arch/powerpc/platforms/86xx/gef_sbc310.c
@@ -153,6 +153,10 @@
 {
 	unsigned int val;
 
+	/* Do not do the fixup on other platforms! */
+	if (!machine_is(gef_sbc310))
+		return;
+
 	printk(KERN_INFO "Running NEC uPD720101 Fixup\n");
 
 	/* Ensure only ports 1 & 2 are enabled */