Add unix locale to code page mapping for ISO-8859-16.

diff --git a/dlls/kernel/locale.c b/dlls/kernel/locale.c
index ef31eee..817a1df 100644
--- a/dlls/kernel/locale.c
+++ b/dlls/kernel/locale.c
@@ -111,6 +111,7 @@
     { "ISO885913", 28603 },
     { "ISO885914", 28604 },
     { "ISO885915", 28605 },
+    { "ISO885916", 28606 },
     { "ISO88592", 28592 },
     { "ISO88593", 28593 },
     { "ISO88594", 28594 },