Update AF_* constants

* xlat/addrfams.in: Add AF_KCM.
diff --git a/xlat/addrfams.in b/xlat/addrfams.in
index 7b1a861..f8c49d7 100644
--- a/xlat/addrfams.in
+++ b/xlat/addrfams.in
@@ -41,3 +41,4 @@
 AF_ALG
 AF_NFC
 AF_VSOCK
+AF_KCM		41