require new KK6 radio

Change-Id: Iefc1212418c2cbc38e634b77b11bd7b8892934ff
diff --git a/board-info.txt b/board-info.txt
index 4750ab1..e1404f8 100644
--- a/board-info.txt
+++ b/board-info.txt
@@ -1,4 +1,4 @@
 require board=tuna
 require version-bootloader=PRIMEKJ10|PRIMEKK15
-require version-baseband=I9250XXKK5
+require version-baseband=I9250XXKK6