ACPICA: Add const qualifier for appropriate string constants

Mostly MODULE_NAME and printf format strings.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
diff --git a/include/acpi/aclocal.h b/include/acpi/aclocal.h
index 62d7468..b221c85 100644
--- a/include/acpi/aclocal.h
+++ b/include/acpi/aclocal.h
@@ -282,8 +282,8 @@
 /* Info structure used to convert external<->internal namestrings */
 
 struct acpi_namestring_info {
-	char *external_name;
-	char *next_external_char;
+	const char *external_name;
+	const char *next_external_char;
 	char *internal_name;
 	u32 length;
 	u32 num_segments;