spelling fixes: arch/i386/

Spelling fixes in arch/i386/.

Signed-off-by: Simon Arlott <simon@fire.lp0.eu>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
diff --git a/arch/x86/mach-generic/default.c b/arch/x86/mach-generic/default.c
index 8685208..1af0cc7 100644
--- a/arch/x86/mach-generic/default.c
+++ b/arch/x86/mach-generic/default.c
@@ -1,5 +1,5 @@
 /* 
- * Default generic APIC driver. This handles upto 8 CPUs.
+ * Default generic APIC driver. This handles up to 8 CPUs.
  */
 #define APIC_DEFINITION 1
 #include <linux/threads.h>