flo: update prebuilt kernel

7944296 Touch: Revert the firmware to A015 but increase the version number to A021.

Change-Id: I03c44e63a9b869d8b8b6b2d07992e423b87164bb
Signed-off-by: Iliyan Malchev <malchev@google.com>
diff --git a/kernel b/kernel
index f4f3228..0b58912 100644
--- a/kernel
+++ b/kernel
Binary files differ