ACPI: Fix typos

Signed-off-by: Len Brown <len.brown@intel.com>
diff --git a/drivers/acpi/apei/erst.c b/drivers/acpi/apei/erst.c
index 18645f4..a4904f1 100644
--- a/drivers/acpi/apei/erst.c
+++ b/drivers/acpi/apei/erst.c
@@ -2,7 +2,7 @@
  * APEI Error Record Serialization Table support
  *
  * ERST is a way provided by APEI to save and retrieve hardware error
- * infomation to and from a persistent store.
+ * information to and from a persistent store.
  *
  * For more information about ERST, please refer to ACPI Specification
  * version 4.0, section 17.4.