powerpc: Fix typos in Freescale copyright claims

There are many cases that Semiconductor is misspelled.  The patch
fix these typos.

Signed-off-by: Li Yang <leoli@freescale.com>
Acked-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
diff --git a/arch/powerpc/platforms/83xx/mpc837x_rdb.c b/arch/powerpc/platforms/83xx/mpc837x_rdb.c
index eca1f09..9813c81 100644
--- a/arch/powerpc/platforms/83xx/mpc837x_rdb.c
+++ b/arch/powerpc/platforms/83xx/mpc837x_rdb.c
@@ -1,7 +1,7 @@
 /*
  * arch/powerpc/platforms/83xx/mpc837x_rdb.c
  *
- * Copyright (C) 2007 Freescale Semicondutor, Inc. All rights reserved.
+ * Copyright (C) 2007 Freescale Semiconductor, Inc. All rights reserved.
  *
  * MPC837x RDB board specific routines
  *