grouper: update prebuilt kernel

b980927 ASoC: codecs: rt5642: fix whoosh noise when making the first
click sound.

Change-Id: I99121de906ed7ece76870a7ac5c2faf3aa6978be
diff --git a/kernel b/kernel
index 14d03e8..75857cb 100644
--- a/kernel
+++ b/kernel
Binary files differ