[PARISC] spelling fixes: arch/parisc/

Spelling fixes in arch/parisc/.

Signed-off-by: Simon Arlott <simon@fire.lp0.eu>
Acked-by: Grant Grundler <grundler@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
diff --git a/arch/parisc/kernel/signal32.h b/arch/parisc/kernel/signal32.h
index e39b38a..c780084 100644
--- a/arch/parisc/kernel/signal32.h
+++ b/arch/parisc/kernel/signal32.h
@@ -113,7 +113,7 @@
 /* In a deft move of uber-hackery, we decide to carry the top half of all
  * 64-bit registers in a non-portable, non-ABI, hidden structure.
  * Userspace can read the hidden structure if it *wants* but is never
- * guaranteed to be in the same place. Infact the uc_sigmask from the
+ * guaranteed to be in the same place. In fact the uc_sigmask from the
  * ucontext_t structure may push the hidden register file downards
  */
 struct compat_regfile {