x86/mm/pat: Fix typo in the Kconfig help text

Signed-off-by: Ingo Molnar <mingo@kernel.org>
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 5e89499..b677857 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -1512,7 +1512,7 @@
 	bool "Enable statistic for Change Page Attribute"
 	depends on DEBUG_FS
 	---help---
-	  Expose statistics about the Change Page Attribute mechanims, which
+	  Expose statistics about the Change Page Attribute mechanism, which
 	  helps to determine the effectiveness of preserving large and huge
 	  page mappings when mapping protections are changed.