x86: Fix common misspellings

They were generated by 'codespell' and then manually reviewed.

Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
Cc: trivial@kernel.org
LKML-Reference: <1300389856-1099-3-git-send-email-lucas.demarchi@profusion.mobi>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/arch/x86/kernel/entry_64.S b/arch/x86/kernel/entry_64.S
index b72b4a6..8a445a0 100644
--- a/arch/x86/kernel/entry_64.S
+++ b/arch/x86/kernel/entry_64.S
@@ -18,7 +18,7 @@
  * A note on terminology:
  * - top of stack: Architecture defined interrupt frame from SS to RIP
  * at the top of the kernel process stack.
- * - partial stack frame: partially saved registers upto R11.
+ * - partial stack frame: partially saved registers up to R11.
  * - full stack frame: Like partial stack frame, but all register saved.
  *
  * Some macro usage:
@@ -422,7 +422,7 @@
 END(ret_from_fork)
 
 /*
- * System call entry. Upto 6 arguments in registers are supported.
+ * System call entry. Up to 6 arguments in registers are supported.
  *
  * SYSCALL does not save anything on the stack and does not change the
  * stack pointer.